McKENZIE, R. B. (1986). Economics Richard B. Mckenzie. Houghton Mifflin.
Lua i Stíl Chicago (17ú heag.)McKENZIE, Richard B. Economics Richard B. Mckenzie. Houghton Mifflin, 1986.
Lua MLA (8ú heag.)McKENZIE, Richard B. Economics Richard B. Mckenzie. Houghton Mifflin, 1986.
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