MLA

Steiner, Frederick R.; Forman, Richard T.T, and Richard T. T Forman. Human Ecology. Island Press, 2016.

APA

Steiner, R. T.T, & Forman, R. T. T. (2016). Human Ecology. Island Press.

Chicago

Steiner, Frederick R.; Forman, Richard T.T., and Richard T. T Forman. Human Ecology. : Island Press, 2016.