Samuelson, P. A. (1967). Instructor's manual to accompany Economics: An introductory analysis (7th ed.). McGraw-Hill.
Citace podle Chicago (17th ed.)Samuelson, Paul Anthony. Instructor's Manual to Accompany Economics: An Introductory Analysis. 7th ed. New York: McGraw-Hill, 1967.
Citace podle MLA (9th ed.)Samuelson, Paul Anthony. Instructor's Manual to Accompany Economics: An Introductory Analysis. 7th ed. McGraw-Hill, 1967.
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