==510 ENUMERATION AND CHRONOLOGY Enumeration and chronology - BASICBIBLIOGRAPHIC UNITBasic bibliographic unit==

==Definition==

The field contains enumeration and chronology for which caption and pattern are recorded in 500CAPTION AND PATTERN Caption and pattern - BASIC BIBLIOGRAPHIC UNITBasic bibliographic unit

==Occurrence==

==Indicators==

==Subfields==

$a$b$c$d$e$f$g$h$i$w$x First level of enumeration. Mandatory if applicable. Not repeatable. $b Contains an enumerative sequential designation. $c Second level of enumeration. Not repeatable. $d Third level of enumeration. Not repeatable. $e Alternative numbering scheme, first level of enumeration. Mandatory if applicable. Notrepeatable. $f Alternative numbering scheme, second level of enumeration. Not repeatable. $g First level of chronology. Mandatory if applicable. Not repeatable. $h Contains chronological sequential designation. When only a chronological designation ispresent, the chronology specifies the holdings. $i Second level of chronology. Not repeatable. $w Third level of chronology. Not repeatable. $x Alternative chronological scheme, first level of chronology. Mandatory if applicable. Notrepeatable.

==Notes on Field Contents==

==Related Fields==

:500 CAPTIONS AND PATTERN Captions and pattern - BASIC BIBLIOGRAPHIC UNITBasic bibliographic unit:520 TEXTUAL HOLDINGS Textual holdings - BASIC BIBLIOGRAPHIC UNITBasic bibliographic unit

==Examples==

''EX 1''

''EX 2''

''EX 3''

''EX 4''

''EX 5''

''EX 6''