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0200068445 20050128143926.0 s2003 cauab frb |000|||eng | 0-607-93723-8(pbk.) NGL n-usp-- a485.3 Duffield, Wendell A. 地热能--来自地球内部的纯净能. chi Geothermal energy : clean power from the Earth's heat / by Wendell A. Duffield and John H. Sass. Menlo Park, Calif. : U.S. Dept. of the Interior, U.S. Geological Survey, 2003. vi, 36 p. : col. ill., col. maps ; 28 cm. Circular ; 1249 Includes bibliographical references(p. 36) Also available on the Internet. Geothermal resources. aSass, John H. ; q(John Harvey), ; d1937- U.S. Geological Survey. Circular / U.S. Geological Survey ; 1249. http://geopubs.wr.usgs.gov/circular/c1249/ NGL EB00065800 P 254.2 C49u v1249 acxh b1 ecxh0501