00438pamaa2200145 4500 0000015815 20090507090000.0 007100646X 621.31 NAS 1990 TK1001 NAS 1990 Schaum's outline of theory and problems of electric power systems Syed A. Nasar. New York: McGraw Hill, 1990. viii, 175p.: 26cm. Schaum's outline series Electric power systems