Lua APA (7ú heag.)

Schewe, C. D. (1980). Marketing Concepts and Applications/Charles D. Schewe & Ruben M. Smith. McGraw-Hill.

Lua i Stíl Chicago (17ú heag.)

Schewe, Charles D. Marketing Concepts and Applications/Charles D. Schewe & Ruben M. Smith. McGraw-Hill, 1980.

Lua MLA (8ú heag.)

Schewe, Charles D. Marketing Concepts and Applications/Charles D. Schewe & Ruben M. Smith. McGraw-Hill, 1980.

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