Παραπομπή APA

Harris, J. (2006). Environmental and natural resource economics: A contemporary approach (2nd ed.). Boston: Houghton Mifflin.

Παραπομπή Chicago Style

Harris, Jonathan. Environmental and Natural Resource Economics: A Contemporary Approach. 2nd ed. Boston: Houghton Mifflin, 2006.

Παραπομπή MLA

Harris, Jonathan. Environmental and Natural Resource Economics: A Contemporary Approach. 2nd ed. Boston: Houghton Mifflin, 2006.

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