一般注記First published in 1933 by the Classification Division, under title: Classification. Class P, PB-PH: Philology, modern European languages.
"Additions and changes to July 1968": 51 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, subclasses PB-PH; and Library of Congress classification schedules combined with additions and changes.