First published in 1938, by the Classification Division, under title: Classification. Subclass PT, part 1, German literature. "Additions and changes to January 1966": 17 p. at end. Kept up to date by the Division's L.C. classification--additions and changes, and by 2 publications irregularly issued by Gale Research Company entitled: Library of Congress classification schedules--a cumulation of additions and changes, Class P, subclass PT, part 1; and Library of Congress classification schedules combined with additions and changes.