Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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