APA引文

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

Chicago Edition Citation

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

MLA引文

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

警告：這些引文格式不一定是100％准確.