APA-referens (7:e uppl.)
National Research Council (U.S.). Committee on Hardrock Mining on Federal Lands & ebrary, Inc. (1999). Hardrock mining on federal lands. National Academy Press.
Chicago-referens (17:e uppl.)
National Research Council (U.S.). Committee on Hardrock Mining on Federal Lands och Inc ebrary. Hardrock Mining on Federal Lands. Washington, D.C. ; [Great Britain]: National Academy Press, 1999.
MLA-referens (9:e uppl.)
National Research Council (U.S.). Committee on Hardrock Mining on Federal Lands och Inc ebrary. Hardrock Mining on Federal Lands. National Academy Press, 1999.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.