Henderson, J. V. (1991). Principles of microeconomics. D.C. Health.
Lua i Stíl Chicago (17ú heag.)Henderson, J Vernon. Principles of Microeconomics. Lexington: D.C. Health, 1991.
Lua MLA (9ú heag.)Henderson, J Vernon. Principles of Microeconomics. D.C. Health, 1991.
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