APA Style

Richerson, Peter J., Evoy, James Mc. (1967). Human Ecology An Environmental Approach . California: Duxbury Press.

Chicago Style

Richerson, Peter J., Evoy, James Mc. Human Ecology An Environmental Approach. California: Duxbury Press, 1967. Text.

MLA Style

Richerson, Peter J., Evoy, James Mc. Human Ecology An Environmental Approach. California: Duxbury Press, 1967. Text.

Turabian Style

Richerson, Peter J., Evoy, James Mc. Human Ecology An Environmental Approach. California: Duxbury Press, 1967. Print.