Lua APA (7ú heag.)

McEACHERN, W. A. (1988). Economics A Contemporary Introduction William A. Mcearchern. South-Western.

Lua i Stíl Chicago (17ú heag.)

McEACHERN, William A. Economics A Contemporary Introduction William A. Mcearchern. South-Western, 1988.

Lua MLA (8ú heag.)

McEACHERN, William A. Economics A Contemporary Introduction William A. Mcearchern. South-Western, 1988.

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