@book{6282,
	author = {RIEGER, HEINZ. and SIEMENS AKTIENGESELLSCHAFT.},
	title = {EL CIRCUITO DE CORRIENTE ALTERNA/ },
	publisher = {SIEMENS},
	year = {1989},
	series = {SER. ENSEÑANZA PROGRAMADA},
	address = {MADRID ; MARCOMBO: }
}