Lua APA (7ú heag.)

Bingham, R. C., & Walstad, W. B. (1990). A study guide to accompany McConnell and Brue economics (11th ed.). McGraw- Hill.

Lua i Stíl Chicago (17ú heag.)

Bingham, Robert C., agus William B. Walstad. A Study Guide to Accompany McConnell and Brue Economics. 11th ed. New York: McGraw- Hill, 1990.

Lua MLA (9ú heag.)

Bingham, Robert C., agus William B. Walstad. A Study Guide to Accompany McConnell and Brue Economics. 11th ed. McGraw- Hill, 1990.

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