642 Series Numbering Example

Field definition and scope:

Field 642 contains the series numbering example that is to be followed in the sequential designation portion of a series added entry tracing in bibliographic records for individual issues of the series named in the 1XX field of an established heading record for a series. When the form of the numbering varies within a series, field 642 is repeated to provide series numbering examples for the different ranges of volumes/dates. Different series numbering examples for different organizations and/or different copies or sets within the same organization are also contained in separate 642 fields.

Field 642 is used only when a numbered series (008/13, Numbered or unnumbered series, code a or c) is to be traced in bibliographic records (645, Series Tracing Practice, subfield $a, code t).

Irregularities in series numbering are contained in field 641 (Series Numbering Peculiarities).

The National level record requirement for this field is Mandatory if applicable.

Field 642 is repeatable.

Guidelines for applying content designators:

For indicator and subfield code definitions and examples, National level (NLR) record requirements, and designator repeatability, see table below:

Position	Description	NLR	Repeatability
Field 642	Series Numbering Example	A	R
Indicator:
First	Undefined; contains a blank	M
Second	Undefined; contains a blank	M

Subfield code:
$a	Series numbering example	M	NR
$d	Volumes/dates to which series numbering example applies	current - O earlier - M	NR
$5	Institution/copy to which field applies	M	R
$6	Linkage	A	NR
$8	Field link and sequence number	O	R

Input conventions:

Content designator history:

First Indicator

Values 0 - Current numbering example [obsolete, 1997] [CAN/MARC only]

1 - Earlier numbering example [obsolete, 1997] [CAN/MARC only]

LC Guidelines:

642 Series Numbering Example

DCM Z1 Instructions:

642 Series Numbering Example

64X Series Treatment