Beginning/ending date(s) of an item and/or the sequential designations used on each part. Dates to be used in this field are chronological designations that identify individual issues of the continuing resource. The sequential designations are usually numeric but can be alphabetic as well. Sequential designation may consist of volume number, edition number, issue number, series of volume numbers, or other sequential designations according to the usage of the publisher. The date may consist of the year, month, or day; month or season and year; or year alone, depending upon the frequency of publication and the usage of the publisher. Formatted style.
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