Cole, C. L. (1973). Microeconomics: A contemporary approach. Harcourt Brace Jovanovich.
Lua i Stíl Chicago (17ú heag.)Cole, Charles L. Microeconomics: A Contemporary Approach. New York: Harcourt Brace Jovanovich, 1973.
Lua MLA (9ú heag.)Cole, Charles L. Microeconomics: A Contemporary Approach. Harcourt Brace Jovanovich, 1973.
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