APA način citiranja

hartwick, J. M. (1989). Non-Renewable resources extraction programs and markets. Harwood academic Pub.

Čikaški stil citiranja

hartwick, John M. Non-Renewable Resources Extraction Programs and Markets. Chur: Harwood academic Pub, 1989.

MLA način citiranja

hartwick, John M. Non-Renewable Resources Extraction Programs and Markets. Harwood academic Pub, 1989.

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