APA

Library of Congress. Classification Division. Classification. Class P P. P. l. c. p. c. l., . (19681928). Classification. Class P, P-PA: Philology, linguistics, classical philology, classical literature, with supplementary pages. Washington: Library of Congress.

Chicago

Library of Congress. Classification Division. Classification. Class P P-PA Philology linguistic classical philology classical literature, . 19681928. Classification. Class P, P-PA: Philology, linguistics, classical philology, classical literature, with supplementary pages. Washington: Library of Congress.

Harvard

Library of Congress. Classification Division. Classification. Class P P. P. l. c. p. c. l., . (19681928). Classification. Class P, P-PA: Philology, linguistics, classical philology, classical literature, with supplementary pages. Washington: Library of Congress.

MLA

Library of Congress. Classification Division. Classification. Class P P-PA Philology linguistic classical philology classical literature, . Classification. Class P, P-PA: Philology, linguistics, classical philology, classical literature, with supplementary pages. Washington: Library of Congress. 19681928.