Nersesian, Roy L. Energy for the 21st century : a comprehensive guide to conventional and alternative sources / Roy L. Nersesian. - New Delhi, India : Pentagon Energy Press, 2009 - xiv, 401 p. : ill. ; 27 cm. Includes bibliographical references and index. ISBN: 8182743575 Subjects--Topical Terms: Power resources. ;Energy policy. Universal Decimal Class. No.: 333.79