# MARC 21 Format for Bibliographic Data Field List # Adapted from www.loc.gov/marc/bibliographic/ecbdlist.html # Retrieved 2021-01-13

–Leader and Directory–

LEADER
   Character Positions
   00-04 - Logical record length
   05 - Record status
       a - Increase in encoding level
       c - Corrected or revised
       d - Deleted
       n - New
       p - Increase in encoding level from prepublication
   06 - Type of record
       a - Language material
       b - Archival and manuscripts control [OBSOLETE]
       c - Notated music
       d - Manuscript notated music
       e - Cartographic material
       f - Manuscript cartographic material
       g - Projected medium
       h - Microform publications [OBSOLETE]
       i - Nonmusical sound recording
       j - Musical sound recording
       k - Two-dimensional nonprojectable graphic
       m - Computer file
       n - Special instructional material [OBSOLETE]
       o - Kit
       p - Mixed material
       r - Three-dimensional artifact or naturally occurring object
       t - Manuscript language material
   07 - Bibliographic level
       a - Monographic component part
       b - Serial component part
       c - Collection
       d - Subunit
       i - Integrating resource
       m - Monograph/item
       s - Serial
   08 - Type of control
       # - No specific type
       a - Archival
   09 - Character coding scheme
       # - MARC-8
       a - UCS/Unicode
   10 - Indicator count
   11 - Subfield code count
   12-16 - Base address of data
   17 - Encoding level
       # - Full level
       1 - Full level, material not examined
       2 - Less-than-full level, material not examined
       3 - Abbreviated level
       4 - Core level
       5 - Partial (preliminary) level
       7 - Minimal level
       8 - Prepublication level
       u - Unknown
       z - Not applicable
   18 - Descriptive cataloging form
       # - Non-ISBD
       a - AACR 2
       c - ISBD punctuation omitted
       i - ISBD punctuation included
       n - Non-ISBD punctuation omitted
       p - Partial ISBD (BK) [OBSOLETE]
       r - Provisional (VM MP MU) [OBSOLETE]
       u - Unknown
   19 - Multipart resource record level
       # - Not specified or not applicable
       a - Set
       b - Part with independent title
       c - Part with dependent title
   20-23 - Entry map
   20 - Length of the length-of-field portion
   21 - Length of the starting-character-position portion
   22 - Length of the implementation-defined portion
   23 - Undefined Entry map character position

 DIRECTORY
 Character Positions
    00-02 - Tag
    03-06 - Field length
    07-11 - Starting character position