Classification. Class P, subclass PG, in part Russian literature (with supplementary pages). - U. S. Library of Congress. Subject Cataloging Division (Washington U. S. Government Printing Office, 1955)
"Additions and changes to July 1955" : 7 pages at end.
Published in 1948 under title : Classification. Subclass PG, in part : Russian literature
Keywords: Classification -- Books -- Russian literature