Walstad, W. B. (1999). Study guide to accompany McConnell and Brue economics (14th ed.). Irwin/McGraw-Hill.
Citace podle Chicago (17th ed.)Walstad, William B. Study Guide to Accompany McConnell and Brue Economics. 14th ed. Boston: Irwin/McGraw-Hill, 1999.
Citace podle MLA (9th ed.)Walstad, William B. Study Guide to Accompany McConnell and Brue Economics. 14th ed. Irwin/McGraw-Hill, 1999.
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