Cowell, F. A. (2006). Microeconomics: Principles and analysis. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Cowell, Frank A. Microeconomics: Principles and Analysis. Oxford ; New York: Oxford University Press, 2006.
Lua MLA (8ú heag.)Cowell, Frank A. Microeconomics: Principles and Analysis. Oxford University Press, 2006.
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