Environmental Studies Board. Study Committee on the Potential for Rehabilitating Lands Surface Mined for Coal in the Western United States & Ford Foundation. Energy Policy Project. (1974). Rehabilitation potential of Western Coal Lands: A report to the Energy Policy Project of the Ford Foundation. Ballinger.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEnvironmental Studies Board. Study Committee on the Potential for Rehabilitating Lands Surface Mined for Coal in the Western United States और Ford Foundation. Energy Policy Project. Rehabilitation Potential of Western Coal Lands: A Report to the Energy Policy Project of the Ford Foundation. Cambridge, Mass: Ballinger, 1974.
एमएलए (9वां संस्करण) प्रशस्ति पत्रEnvironmental Studies Board. Study Committee on the Potential for Rehabilitating Lands Surface Mined for Coal in the Western United States और Ford Foundation. Energy Policy Project. Rehabilitation Potential of Western Coal Lands: A Report to the Energy Policy Project of the Ford Foundation. Ballinger, 1974.