Cita APA

Roberts, R. D., & Roberts, T. M. (1984). Planning and Ecology (1st ed. 1984.). New York, NY: Springer US : Imprint: Springer.

Citación estilo Chicago

Roberts, R. D., y T. M. Roberts. Planning and Ecology. 1st ed. 1984. New York, NY: Springer US : Imprint: Springer, 1984.

Cita MLA

Roberts, R. D., y T. M. Roberts. Planning and Ecology. 1st ed. 1984. New York, NY: Springer US : Imprint: Springer, 1984.