Kotler, P., & Roberto, E. L. (1989). Social Marketing: Strategies for Changing Public Behavior. Free Press.
Lua i Stíl Chicago (17ú heag.)Kotler, Philip, agus Eduardo L. Roberto. Social Marketing: Strategies for Changing Public Behavior. New York: Free Press, 1989.
Lua MLA (9ú heag.)Kotler, Philip, agus Eduardo L. Roberto. Social Marketing: Strategies for Changing Public Behavior. Free Press, 1989.
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