Hartwick, J. M. (1989). Non-renewable resources extraction programs and markets. Harwood Acad. Publ.
Chicago Style (17th ed.) CitationHartwick, John M. Non-renewable Resources Extraction Programs and Markets. Chur u.a: Harwood Acad. Publ, 1989.
MLA (9th ed.) CitationHartwick, John M. Non-renewable Resources Extraction Programs and Markets. Harwood Acad. Publ, 1989.
Warning: These citations may not always be 100% accurate.