Lua APA (7ú heag.)

Berkowitz, E. N., Hartley,Steven W, & Rudelius,William. (1997). Marketing (5th ed.). Irwin.

Lua i Stíl Chicago (17ú heag.)

Berkowitz, Eric N., Hartley,Steven W, agus Rudelius,William. Marketing. 5th ed. Chicago, Ill.: Irwin, 1997.

Lua MLA (8ú heag.)

Berkowitz, Eric N., et al. Marketing. 5th ed. Irwin, 1997.

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