Lua APA (7ú heag.)

Schiller, B. R. (1993). Essentials of economics. McGraw-Hill.

Lua i Stíl Chicago (17ú heag.)

Schiller, Bradley R. Essentials of Economics. New York: McGraw-Hill, 1993.

Lua MLA (8ú heag.)

Schiller, Bradley R. Essentials of Economics. McGraw-Hill, 1993.

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