First multi-year cumulation covers six years: 1965-70.

Volume 1 is a comprehensive dictionary with more than 230,000 entries. It covers periodicals from a wide variety of subjects, including: science, social sciences, humanities, law, medicine, religion, library science, engineering, education, business, and art. Volume 1lists, in a single in letter-by-letter sequence, abbreviations commonly used for periodicals together with their full titles.

A union list of serials commencing publication after Dec. 31, 1949.