Zimmerman, M. E. (1998). Environmental philosophy: From animal rights to radical ecology (2nd ed.). Prentice Hall.
Citace podle Chicago (17th ed.)Zimmerman, Michael E. Environmental Philosophy: From Animal Rights to Radical Ecology. 2nd ed. Upper Saddle River, N.J: Prentice Hall, 1998.
Citace podle MLA (9th ed.)Zimmerman, Michael E. Environmental Philosophy: From Animal Rights to Radical Ecology. 2nd ed. Prentice Hall, 1998.
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