APA-viite (7. p.)

United States Library of Congress. (1928). Classification. Class P, P-PA: Philology, linguistic, classical philology, classical literature. U. S. Government Printing Office.

Chicago-viite (17. p.)

United States Library of Congress. Classification. Class P, P-PA: Philology, Linguistic, Classical Philology, Classical Literature. Washington: U. S. Government Printing Office, 1928.

MLA-viite (9. p.)

United States Library of Congress. Classification. Class P, P-PA: Philology, Linguistic, Classical Philology, Classical Literature. U. S. Government Printing Office, 1928.