Case, K. E., & Fair, R. C. (1999). Principles of microeconomics (5th ed.). Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Case, Karl E., agus Ray C. Fair. Principles of Microeconomics. 5th ed. Upper Saddle River, N.J: Prentice Hall, 1999.
Lua MLA (9ú heag.)Case, Karl E., agus Ray C. Fair. Principles of Microeconomics. 5th ed. Prentice Hall, 1999.
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