Ouderkirk, W., & Hill, A. (2002). Land, value, community : Callicott and environmental philosophy: Callicott and environmental philosophy. State University of New York Press.
Čikaški stil citiranja (17. izdanje)Ouderkirk, Wayne, i Alison Hill. Land, Value, Community : Callicott and Environmental Philosophy: Callicott and Environmental Philosophy. Albany, NY: State University of New York Press, 2002.
MLA način citiranja (9. izdanje)Ouderkirk, Wayne, i Alison Hill. Land, Value, Community : Callicott and Environmental Philosophy: Callicott and Environmental Philosophy. State University of New York Press, 2002.
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