APA (7th ed.) Zitazioa
Berry, E. (2015). Devoted to nature: The religious roots of American environmentalism. University of California Press.
Chicago Style (17th ed.) Zitazioa
Berry, Evan. Devoted to Nature: The Religious Roots of American Environmentalism. Oakland, California: University of California Press, 2015.
MLA (9th ed.) Zitazioa
Berry, Evan. Devoted to Nature: The Religious Roots of American Environmentalism. University of California Press, 2015.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.