Cita APA

Ehrenfeld, D. (1972). Conserving life on earth ([1. ed.].). New York: Oxford University.

Citación estilo Chicago

Ehrenfeld, David. Conserving Life On Earth. [1. ed.]. New York: Oxford University, 1972.

Cita MLA

Ehrenfeld, David. Conserving Life On Earth. [1. ed.]. New York: Oxford University, 1972.