clean power from the Earth's heat Duffield, Wendell A. creator Sass, J. H. (John Harvey) 1937- Geological Survey (U.S.) text bibliography cau Menlo Park, Calif Denver, CO U.S. Geological Survey Available from U.S. Geological Survey Information Services [distributor] 2003 monographic eng

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vi, 36 p. col. ill., col. maps 28 cm. by Wendell A. Duffield and John H. Sass. Shipping list no.: 2004-0008-P. Includes bibliographical references (p. 36). Also available via Internet from the USGS web site. Address as of 10/27/03: http://geopubs.wr.usgs.gov/circular/c1249/C1249.pdf; current access is available via PURL. Geothermal resources I 19.4/2:1249 I 19.4/2:1249 http://geopubs.wr.usgs.gov/circular/c1249/ http://purl.access.gpo.gov/GPO/LPS38991 http://geopubs.wr.usgs.gov/circular/c1249/ http://purl.access.gpo.gov/GPO/LPS38991 GIS 031008 20200624062623.0 265109