Cita APA (7th ed.)

United States. Library of Congress. (1990). Library of Congress classification schedules combined with additions and changes through 1989: Class P, subclass PQ, part 1, French literature. Gale Research.

Cita Chicago (17th ed.)

United States. Library of Congress. Library of Congress Classification Schedules Combined with Additions and Changes Through 1989: Class P, Subclass PQ, Part 1, French Literature. Detroit: Gale Research, 1990.

Cita MLA (9th ed.)

United States. Library of Congress. Library of Congress Classification Schedules Combined with Additions and Changes Through 1989: Class P, Subclass PQ, Part 1, French Literature. Gale Research, 1990.