National Research Council (U.S.). Committee on Hardrock Mining on Federal Lands & ebrary, Inc. (1999). Hardrock mining on federal lands. National Academy Press.
Cóipeáladh chuig an ngearrthaisce go rathúil é
Níorbh fhéidir cóipeáil chuig an ngearrthaisce
Lua i Stíl Chicago (17ú heag.)
National Research Council (U.S.). Committee on Hardrock Mining on Federal Lands agus Inc ebrary. Hardrock Mining on Federal Lands. Washington, D.C. ; [Great Britain]: National Academy Press, 1999.
Cóipeáladh chuig an ngearrthaisce go rathúil é
Níorbh fhéidir cóipeáil chuig an ngearrthaisce
Lua MLA (9ú heag.)
National Research Council (U.S.). Committee on Hardrock Mining on Federal Lands agus Inc ebrary. Hardrock Mining on Federal Lands. National Academy Press, 1999.
Cóipeáladh chuig an ngearrthaisce go rathúil é
Níorbh fhéidir cóipeáil chuig an ngearrthaisce
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.