Walstad, W. B., & Bingham, R. C. (2005). Study guide to accompany McConnell and Brue microeconomics (16th ed.). McGraw-Hill/Irwin.
Cita Chicago (17th ed.)Walstad, William B., i Robert C. Bingham. Study Guide to Accompany McConnell and Brue Microeconomics. 16th ed. New York, N.Y: McGraw-Hill/Irwin, 2005.
Cita MLA (9th ed.)Walstad, William B., i Robert C. Bingham. Study Guide to Accompany McConnell and Brue Microeconomics. 16th ed. McGraw-Hill/Irwin, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.