Poplin, D. E. (1972). Communities: A survey of theories and methods of research. New York: Macmillan.
Trích dẫn kiểu ChicagoPoplin, Dennis E. Communities: A Survey of Theories and Methods of Research. New York: Macmillan, 1972.
Deismireacht MLAPoplin, Dennis E. Communities: A Survey of Theories and Methods of Research. New York: Macmillan, 1972.
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