Classification. Class P, subclass PQ, part 2: Italian, Spanish, and Portuguese literatures, with supplementary pages. - U. S. Library of Congress Subject Cataloging Division; United States Library of Congress Classification Division (Washington U. S. Government Printing Office, 1955)
"Additions and changes to July 1955" : 9 pages at end.
Previously published by the Classification Division of the Library of Congress.
Keywords: Classification -- Books -- Italian literature; Classification -- Books -- Portuguese literature; Classification -- Books -- Spanish literature