PINDYCK, R. S. (2001). Microeconomics ed.5. Prentice Hall International.
Lua i Stíl Chicago (17ú heag.)PINDYCK, Robert S. Microeconomics Ed.5. Prentice Hall International, 2001.
Lua MLA (8ú heag.)PINDYCK, Robert S. Microeconomics Ed.5. Prentice Hall International, 2001.
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