APA (7e ed.) Bronvermelding
Gordon, S. D., & Dawson, G. G. (1987). Instructor's guide with test items for Introductory economics (6th ed.). D.C. Heath.
Chicago (17e ed.) Bronvermelding
Gordon, Sanford D., en George Glenn Dawson. Instructor's Guide with Test Items for Introductory Economics. 6th ed. Lexington, Mass.: D.C. Heath, 1987.
MLA (9e ed.) Bronvermelding
Gordon, Sanford D., en George Glenn Dawson. Instructor's Guide with Test Items for Introductory Economics. 6th ed. D.C. Heath, 1987.
Let op: Deze citaties zijn niet altijd 100% accuraat.