APA

Barrett L., Dunbar R. & Lycett J. (2002). Human evolutionary psychology. New York: Palgrave.

Chicago

Barrett Louise, Dunbar Robin and Lycett John. 2002. Human evolutionary psychology. New York: Palgrave.

Harvard

Barrett L., Dunbar R. and Lycett J. (2002). Human evolutionary psychology. New York: Palgrave.

MLA

Barrett Louise, Dunbar Robin and Lycett John. Human evolutionary psychology. New York: Palgrave. 2002.