APA Citatie

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

Chicago Style citaat

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

MLA citatie

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

Let op: Deze citaties zijn niet altijd 100% accuraat.