Use "v." for all serials, regardless of the terminology used by the serial.

When a serial is complete, give the number of bibliographic, not physical, volumes in subfield $a.

For most serials, use "ill." in subfield $b, when appropriate.

Measure the height of the serial as published. Do not measure in-house binding.

Record changes in height only; do not record changes in width.

See also:

Module 11. Physical Description (field 300)