Porges, F. Design of Electrical Services for Buildings / F. Porges, John Porges. - 2nd ed. - London ; E. & F.N. Spon, 1982. - x, 309 p. : ill. ; Includes index. ISBN: 0419123601 $29.95 ISSN: Dewey Class. No.: 621.3192 / POR-D