Kephart, W. M., & William W. Zellner. (1998). Extraordinary groups: An examination of unconventional lifestyles (6th ed.). St. Martin's Press.
Citace podle Chicago (17th ed.)Kephart, William M., a William W. Zellner. Extraordinary Groups: An Examination of Unconventional Lifestyles. 6th ed. New York: St. Martin's Press, 1998.
Citace podle MLA (9th ed.)Kephart, William M., a William W. Zellner. Extraordinary Groups: An Examination of Unconventional Lifestyles. 6th ed. St. Martin's Press, 1998.
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