Geothermal

By Carl Linvill, John Candelaria and Catherine Elder
Aspen Environmental Group
February 2013
by S. Kawazoe (Tempes) and J. Combs (Geo Hills Associates)
GRC Bulleting - March/April 2004
by L.Y. Bronicki
Encyclopedia of Physical Science & Technology - December 2003
by R. Sanchez Velasco, M. Lopez-Diaz, H. Mendoza, R. Tello-Hinojosa (CFE, Morelia, Mexico) 
by E. M. Lima Lobato (West Japan), J. Palma (INDE), A. R. Roldan Manzo (INDE) GRC Bulletin - May/June 2003
by J. Makower, R. Pernick, C. Wilder
Clean Edge - March 2008