APA-Zitierstil (7. Ausg.)

Library of Congress Subject Cataloging Division. (1978). Classification, subclass PQ: Part 2, Italian, Spanish, and Portuguese literature. U. S. Govt. Print. Off.

Chicago-Zitierstil (17. Ausg.)

Library of Congress Subject Cataloging Division. Classification, Subclass PQ: Part 2, Italian, Spanish, and Portuguese Literature. Washington: U. S. Govt. Print. Off, 1978.

MLA-Zitierstil (9. Ausg.)

Library of Congress Subject Cataloging Division. Classification, Subclass PQ: Part 2, Italian, Spanish, and Portuguese Literature. U. S. Govt. Print. Off, 1978.