Walstad, W. B., & Bingham, R. C. (1993). Study guide to accompany McConnell and Brue: Economics (12th ed.). McGraw-hill.
Citace podle Chicago (17th ed.)Walstad, William B., a Robert C. Bingham. Study Guide to Accompany McConnell and Brue: Economics. 12th ed. New York: McGraw-hill, 1993.
Citace podle MLA (9th ed.)Walstad, William B., a Robert C. Bingham. Study Guide to Accompany McConnell and Brue: Economics. 12th ed. McGraw-hill, 1993.
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