00711nam0-22002531i-450-99000400240040332120040223134345.0000400240FED01000400240(Aleph)000400240FED0100040024020040109d--------km-y0itay50------baengReference data for radio engineersInternational telephone and telegraph corporation4New YorkAmerican Book1956radiotecnicaITUNINARICAUNIMARCBK99000400240040332100 G15302763DETECDETECReference data for radio engineers472257UNINA