Following the success of its MARC Format Reference Card: Books (See LSN Vol. III, No. 9), Library Systems & Services Inc. has prepared a similar guide to the tags, indicators and subfield codes used in the MARC and OCLC serial formats. Copies of the card are available for $3.50.
[Contact: Library Systems & Services, Inc., 1395 Piccard Drive, Suite 100, Rockville, MD 20850. (301) 258—0200.]
