Cita APA (7a ed.)

John Muir Institute for Environmental Studies, University of New Mexico, Environmental Philosophy, Inc, University of Georgia, & Center for Environmental Philosophy. (1979). Environmental ethics. Philosophy Documentation Center.

Cita Chicago Style (17a ed.)

John Muir Institute for Environmental Studies, University of New Mexico, Inc Environmental Philosophy, University of Georgia, y Center for Environmental Philosophy. Environmental Ethics. Charlottesville, VA: Philosophy Documentation Center, 1979.

Cita MLA (9a ed.)

John Muir Institute for Environmental Studies, et al. Environmental Ethics. Philosophy Documentation Center, 1979.