Παραπομπή APA
Bates, F. L., & Harvey, C. C. (1975). The structure of social systems. New York: Gardner Press : distributed by Halsted Press.
Παραπομπή Chicago StyleBates, Frederick L., and Clyde C. Harvey. The Structure of Social Systems. New York: Gardner Press : distributed by Halsted Press, 1975.
Παραπομπή MLABates, Frederick L., and Clyde C. Harvey. The Structure of Social Systems. New York: Gardner Press : distributed by Halsted Press, 1975.
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