Cita APA (7th ed.)
Guth, H. P. (1991). New concise handbook (2nd ed.). Wadsworth Pub. Co..
Cita Chicago (17th ed.)
Guth, Hans Paul. New Concise Handbook. 2nd ed. Belmont, Calif.: Wadsworth Pub. Co., 1991.
Cita MLA (9th ed.)
Guth, Hans Paul. New Concise Handbook. 2nd ed. Wadsworth Pub. Co., 1991.
Atenció: Aquestes cites poden no estar 100% correctes.