APA

Koocher G. P., Keith-Spiegel P., . (1998). Ethics in psychology. New York: Oxford University Press.

Chicago

Koocher Gerald P, Keith-Spiegel Patricia, . 1998. Ethics in psychology. New York: Oxford University Press.

Harvard

Koocher G. P., Keith-Spiegel P., . (1998). Ethics in psychology. New York: Oxford University Press.

MLA

Koocher Gerald P, Keith-Spiegel Patricia, . Ethics in psychology. New York: Oxford University Press. 1998.