Kahn, J. R. (2005). The Economic approach to environmental and natural resources (3rd ed.). Thomson/South-Western.
Čikaški stil citiranja (17. izdanje)Kahn, James R. The Economic Approach to Environmental and Natural Resources. 3rd ed. Australia: Thomson/South-Western, 2005.
MLA način citiranja (9. izdanje)Kahn, James R. The Economic Approach to Environmental and Natural Resources. 3rd ed. Thomson/South-Western, 2005.
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