TY - BOOK AU - Nelson, Paul A and others, Ed. TI - Proceedings of the <25=Twentififth> inter society energy conversion engineering conference Vol.<4=four> : Energy systems policy impact on energy held on <12=twelve>th - <17=seventeen>th August <1990=one thousand nine hundred ninety> at Reno, Nevada PB - American Institute of Chemical Engineers, New York, 1990 ER -