ORTIZ, I.// ANTHONY, R. (UNITED ENERGY DEVELOPMENT CONSULTANTS, INC., AMBRIDGE, PA (UNITED STATES))United States. Dept. of Energy(United States. Dept. of Energy)1995.
I. ORTIZ//ET AL. (USDOE ASSISTANT SECRETARY FOR FOSSIL ENERGY, WASHINGTON, DC (UNITED STATES))United States. Dept. of Energy(United States. Dept. of Energy)1996.