VanDeVeer, D. (1998). The Environment ethics and policy book: Philosophy, ecology, economics. Wadsworth; ITP.
Chicago-čujuhus (17. p.)VanDeVeer, Donald. The Environment Ethics and Policy Book: Philosophy, Ecology, Economics. Belmont, CA: Wadsworth; ITP, 1998.
MLA-čujuhus (9. p.)VanDeVeer, Donald. The Environment Ethics and Policy Book: Philosophy, Ecology, Economics. Wadsworth; ITP, 1998.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.