Levine, M., & Perkins, D. V. (1997). Principles of community psychology: Perspectives and applications (2nd ed.). Oxford University Press.
Dyfyniad Arddull ChicagoLevine, Murray, and David V. Perkins. Principles of Community Psychology: Perspectives and Applications. 2nd ed. New York: Oxford University Press, 1997.
Dyfyniad MLALevine, Murray, and David V. Perkins. Principles of Community Psychology: Perspectives and Applications. 2nd ed. Oxford University Press, 1997.
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