Dyfyniad APA

Gwartney, J. D. (1990). Economics: Private and public choice (5th ed.). Harcount brace jovanovich.

Dyfyniad Arddull Chicago

Gwartney, James D. Economics: Private and Public Choice. 5th ed. San diego: Harcount brace jovanovich, 1990.

Dyfyniad MLA

Gwartney, James D. Economics: Private and Public Choice. 5th ed. Harcount brace jovanovich, 1990.

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