Cita APA (7th ed.)

Levine, M., & Perkins, D. V. (1997). Principles of community psychology: Perspectives and applications (2nd ed.). Oxford University Press.

Cita Chicago (17th ed.)

Levine, Murray, i David V. Perkins. Principles of Community Psychology: Perspectives and Applications. 2nd ed. New York: Oxford University Press, 1997.

Cita MLA (9th ed.)

Levine, Murray, i David V. Perkins. Principles of Community Psychology: Perspectives and Applications. 2nd ed. Oxford University Press, 1997.