APA
Andreasen A. R., . (2006). Social Marketing in the 21st Century. : SAGE.
Chicago
Andreasen Alan R, . 2006. Social Marketing in the 21st Century. : SAGE.
Harvard
Andreasen A. R., . (2006). Social Marketing in the 21st Century. : SAGE.
MLA
Andreasen Alan R, . Social Marketing in the 21st Century. : SAGE. 2006.