Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

John Muir Institute for Environmental Studies, University of New Mexico, Inc Environmental Philosophy, e University of Georgia. Environmental Ethics. Albuquerque, N.M: John Muir Institute for Environmental Studies and University of New Mexico, 1979.

Citatione MLA (9a ed.)

John Muir Institute for Environmental Studies, et al. Environmental Ethics. John Muir Institute for Environmental Studies and University of New Mexico, 1979.