Classification. Literature, subclasses PN, PR, PS, PZ. - U. S. Library of Congress Classification Division; Wiley, Edwin 1872-1924.; Martel, Charles 1860-1945.; Perley, Clarence W. Clarence Warner 1867-1946. (Washington U. S. Government Printing Office, 1915)
Keywords: Classification -- Books -- American literature; Classification -- Books -- English literature; Classification -- Books -- Literature