Tohutoro APA (7th ed.)

Guth, H. P. (1991). New concise handbook (2nd ed.). Wadsworth Pub. Co..

Tohutoru Kātū Chicago (17th ed.)

Guth, Hans Paul. New Concise Handbook. 2nd ed. Belmont, Calif.: Wadsworth Pub. Co., 1991.

Tohutoro MLA (9th ed.)

Guth, Hans Paul. New Concise Handbook. 2nd ed. Wadsworth Pub. Co., 1991.