Gaya APA

Schaefer, R, T., Zellner, W, W. (2008). Extraordinary Groups: An Examination of Unconventional Lifestyles . New York: Worth publishers.

Gaya MLA

Schaefer, Richard, T.., Zellner, William, W. "Extraordinary Groups: An Examination of Unconventional Lifestyles". New York: Worth publishers, 2008. Buku Tercetak.