Ferré, F. (1993). Persons in Nature: Toward an Applicable and Unified Environmental Ethics. Zygon, 28(4), 441-453. doi:10.1111/j.1467-9744.1993.tb01049.x
Chicago-Zitierstil (17. Ausg.)Ferré, Frederick. "Persons in Nature: Toward an Applicable and Unified Environmental Ethics." Zygon 28, no. 4 (1993): 441-453, https://doi.org/10.1111/j.1467-9744.1993.tb01049.x.
MLA-Zitierstil (8. Ausg.)Ferré, Frederick. "Persons in Nature: Toward an Applicable and Unified Environmental Ethics." Zygon, vol. 28, no. 4, 1993, pp. 441-453, https://doi.org/10.1111/j.1467-9744.1993.tb01049.x.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.