Cole, C. L., & Baumol, W. J. (1973). Microeconomics: A contemporary approach. Harcourt.
Lua i Stíl Chicago (17ú heag.)Cole, Charles L., agus William J. Baumol. Microeconomics: A Contemporary Approach. New York: Harcourt, 1973.
Lua MLA (9ú heag.)Cole, Charles L., agus William J. Baumol. Microeconomics: A Contemporary Approach. Harcourt, 1973.
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