MARC 21 Format for Bibliographic Data: 852: Location (Network Development and MARC Standards Office, Library of Congress)

First - Shelving scheme: # - No information provided; 0 - Library of Congress classification; 1 - Dewey Decimal classification; 2 - National Library of Medicine classification; 3 - Superintendent of Documents classification; 4 - Shelving control number; 5 - Title; 6 - Shelved separately; 7 - Source specified in subfield $2; 8 - Other scheme
Second - Shelving order: # - No information provided; 0 - Not enumeration; 1 - Primary enumeration; 2 - Alternative enumeration

$a - Location (NR): Institution or person holding the item or from which access is given. Contains a MARC code of the holding institution or the name of the institution or person.; See: MARC Code List for Organizations.

$b - Sublocation or collection (R): Specific department, library, etc., within the holding organization in which the item is located or from which it is available.

$e - Address (R): Street address, city, state, zip code, and country information for the current physical location of the item.

$f - Coded location qualifier (R): Three-character code that identifies the specific issues of the item that are located apart from the main holdings of the same item. Subfield $f immediately follows the subfield $a, $b, or $c being qualified.; l, p - Qualifier type; l - Latest; Latest, including the current, time or part unit is housed in a different location.; p - Previous; Previous, not including the current, time or part unit is housed in a different location.; 1-9 - Number of units; One-character number (1-9) specifies the number of time or part units that are housed in a different location. When a number is not required to identify the specific units, this character position contains a blank (#). If the number of time or parts units exceeds 9, they may be contained in subfield $g (Non-coded location qualifier) and this character position contains a blank (#).
When Qualifier type is Latest (code l), the number includes the current time or part unit. When Qualifier type is Previous (code p), the number does not include the current time or part unit.; # - No information provided; 1-9 - Number of units; m, w, y, e, i, s - Unit type; m - Month(s) time; w - Week(s) time; y - Year(s) time; e - Edition(s) part; i - Issue(s) part; s - Supplement(s) part

$g - Non-coded location qualifier (R): Textual description that is used when the codes in subfield $f (Coded location qualifier) are inadequate for describing the unit that is located apart from the main holdings of the same item. Subfield $g immediately follows the subfield $a, $b, or $c being qualified.

$l - Shelving form of title (NR): Shelving title of an unclassified item that is shelved by title.

$n - Country code (NR): Two- or three-character MARC code for the principal location contained in subfield $a (Location). Code from: MARC Code List for Countries.

$p - Piece designation (NR): Identification of a single piece when the holdings information does not contain an 863-865 (Enumeration and Chronology) or 876-878 (Item Information) field that contains a subfield $p (Piece designation).

$q - Piece physical condition (NR): Description of any unusual characteristic of the physical condition of the piece when the holdings information does not contain an 863-865 (Enumeration and Chronology) or 876-878 (Item Information) field that contains a subfield $q (Piece physical condition).

$t - Copy number (NR): Copy number or a range of numbers for copies that have the same location and call number when the holdings information does not contain an 863-865 Enumeration and Chronology field that contains subfield $t (Copy number).

$u - Uniform Resource Identifier (R): Uniform Resource Identifier (URI), for example a URL or URN, which provides electronic access data in a standard syntax.; The URI links to the repository that holds the item (regardless of whether the item is analog or digital). This information may also be recorded as an organization code or text in subfield $a (Location) and (if applicable) subfield $b (Sublocation).

$2 - Source of classification or shelving scheme (NR): MARC code that identifies the source from which the classification or shelving was assigned. It is used only when the first indicator position contains value 7 (Source specified in subfield $2). Code from: Classification Scheme Source Codes.

$6 - Linkage (NR): See description of this subfield in Appendix A: Control Subfields.

$8 - Sequence number (NR): To sequence related holdings records, see field 852, subfield $8 in the MARC 21 Format for Holdings Data.

852	01$aCtY$bMain$hLB201$i.M63
852	##$aCLU
852	##$aNational Archives and Records Service$bGenealogical Research Recording$ePennsylvania Ave. at 8th St., N.W., Washington, D.C. USA$ndcu
852	##$aCSf$bSci$t1
852	##$aNational Geographic Society$bPersonnel Dept.$e17th & M St., N.W., Washington, DC USA
852	81$a [location identifier] $bMain$cmezzanine stacks
852	8#$a[location identifier]$cN.Mus.ms. 2234$dMus.ms.pr. XII/911$d13.492
852	81$aFrPALP$hPer$iREF
852	4#$aDLC$bMicRR$jMicrofilm 82/528 MicRR
852	##$a [location identifier] $bMain$coversize shelving$qchild's graffiti on end papers
852	##$aLibrary of Congress$bPrints and Photographs Division$eWashington, D.C. 20540 USA$ndcu$uhttp://hdl.loc.gov/loc.pnp/pp.print
852	##$aMH$cCurrent issues in R.R.$x1-54 on order in Microfiche
852	81$a [location identifier] $hM$iS:55$p1100064014$xaccession no.: 90/84370
852	#0$3Correspondence$a [location identifier] $bManuscript Division

852 - Location (R)