Classification. Class P, subclass PA supplement : Byzantine and modern Greek literature, medieval and modern Latin literature / reissued with supplementary pages of additions and changes to January, 1968.
Washington : [For sale by the Card Division, Library of Congress] 1968.
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 PA supplement; and Library of Congress classification schedules combined with additions and changes.