APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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