A serial is issued in parts when each number or issue constitutes more than one physical item. Each part is usually distinguished by numbers or letters and/or an individual title. The parts all have the same common title and usually have the same numeric/chronological designation. (CCM: 17.3.1)
CONSER provides three cataloging options for serials issued in parts.
Create Separate records for each part.
All parts are included on one record with a general 515 note, such as "Issued in parts."
All parts are included on one record with the individual titles listed in a 515 note (this option is less frequently applied).
Create Separate records for each part. (CCM: 17.3.3.a). CONSER instructs to create separate records for serials issued in parts under the following situations.
If the parts can be used independently:
245 00 $a Journal of polymer science. $n Part A, $p Polymer chemistry.
245 00 $a Journal of polymer science. $n Part B, $p Polymer physics.
245 00 $a Journal of polymer science. $n Part C, $p Polymer symposia.
If the parts have their own numbering systems:
245 00 $a Journal of polymer science. $n Part A, $p Polymer chemistry.
362 0# $a Vol. 24, no. 2 (Feb. 1986)-
245 00 $a Journal of polymer science. $n Part B, $p Polymer physics.
362 0# $a Vol. 24, no. 2 (Feb. 1986)-