Classification. Literature, subclasses PN, PR, PS, PZ. PN: General literary history and collections; PR: English literature; PS: American literature; PZ: Fiction and juvenile literature
Library of Congress. Subject Cataloging Division; Library of Congress. Classification Division. Classification. Literature, subclasses PN, PR, PS, PZ; Wiley, Edwin, 1872-1924; Martel, Charles, b. 1860; Perley, Clarence Warner, 1867-