APA-čujuhus (7. p.)
Attfield, R. (1991). The Ethics of Environmental Concern (2nd ed.). University of Georgia Press.
Chicago-čujuhus (17. p.)
Attfield, Robin. The Ethics of Environmental Concern. 2nd ed. Athens, Ga.: University of Georgia Press, 1991.
MLA-čujuhus (9. p.)
Attfield, Robin. The Ethics of Environmental Concern. 2nd ed. University of Georgia Press, 1991.
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