Tohutoro APA (7th ed.)
Gordon, S. D., & Dawson, G. G. (1987). Instructor's guide with test items for Introductory economics (6th ed.). D.C. Heath.
Tohutoru Kātū Chicago (17th ed.)
Gordon, Sanford D., me George Glenn Dawson. Instructor's Guide with Test Items for Introductory Economics. 6th ed. Lexington, Mass.: D.C. Heath, 1987.
Tohutoro MLA (9th ed.)
Gordon, Sanford D., me George Glenn Dawson. Instructor's Guide with Test Items for Introductory Economics. 6th ed. D.C. Heath, 1987.
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