Dyfyniad APA

Andreasen, A. R. (2006). Social marketing in the 21st century. SAGE Publications.

Dyfyniad Arddull Chicago

Andreasen, Alan R. Social Marketing in the 21st Century. Thousand Oaks, Calif.: SAGE Publications, 2006.

Dyfyniad MLA

Andreasen, Alan R. Social Marketing in the 21st Century. SAGE Publications, 2006.

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