Παραπομπή σε μορφή APA (7η εκδ.)

Kephart, W. M., & William W. Zellner. (1998). Extraordinary groups: An examination of unconventional lifestyles (6th ed.). St. Martin's Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Kephart, William M., και William W. Zellner. Extraordinary Groups: An Examination of Unconventional Lifestyles. 6th ed. New York: St. Martin's Press, 1998.

Παραπομπή σε μορφή MLA (9th εκδ.)

Kephart, William M., και William W. Zellner. Extraordinary Groups: An Examination of Unconventional Lifestyles. 6th ed. St. Martin's Press, 1998.