Record the series numbering following the series title.
Give the numbering of the series in the terms given on the item.
Abbreviate numbering designations using standard abbreviations given in AACR2 Appendix B (see Roman alphabet abbreviations at Princeton University site). When an abbreviation is not given on the list, use the full word.
Replace spelled-out numbers and Roman numerals with Arabic numerals.
Spacing
Always leave a space between the volume designation and the number, e.g., "v. 5".
Leave a single space when only the beginning or ending volume number or date is given.
490 1# 1981-82- : NEA research memo
Variations in designation
If the volume designation varies within the series (e.g., "v. 3" vs. "no. 6") and the Authority File indicates that only one of these designations should be used in a series added entry, use the designation on the piece in subfield |v of a 490 field with first indicator value "1"; add an 8XX field using the designation in the Authority File in subfield |v. The variation should be noted in the Authority File.
If the series is not traced ("no series" in Authority File), record the designation on the piece in subfield |v of a 490 field with first indicator value "0". The variation should be added to the Authority File.
Non-consecutive series numbers
When volumes in a set bear non-consecutive numbers within a series, use a single 490 field. Give ranges of consecutive numbers separated by a hyphen (e.g., "v. 1-5").
Separate non-consecutive numbers by a semicolon (e.g., "v. 1-3; v. 6")
490|x ISSN
A |x subfield containing an International Standard Serial Number (ISSN) may appear in the 490 field preceding the |v in copy. We currently accept it in copy, but do not input it.
490 0# Life series,|x0023-6721