Cita APA (7th ed.)
Gordon, S. D., & Dawson, G. G. (1987). Instructor's guide with test items for Introductory economics (6th ed.). D.C. Heath.
Cita Chicago (17th ed.)
Gordon, Sanford D., i George Glenn Dawson. Instructor's Guide with Test Items for Introductory Economics. 6th ed. Lexington, Mass.: D.C. Heath, 1987.
Cita MLA (9th ed.)
Gordon, Sanford D., i George Glenn Dawson. Instructor's Guide with Test Items for Introductory Economics. 6th ed. D.C. Heath, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.