Cita APA (7th ed.)
Andreasen, A. R. Social Marketing in the 21st Century. Sage.
Cita Chicago (17th ed.)
Andreasen, Alan R. Social Marketing in the 21st Century. Los Angeles, EUA: Sage.
Cita MLA (9th ed.)
Andreasen, Alan R. Social Marketing in the 21st Century. Sage.
Atenció: Aquestes cites poden no estar 100% correctes.