King, Gordon J..
Radio, Television and Audio Test Instruments / King Gordon J.. - 2 edition. - London : Newnes-Butterworths, 1972. - 199 s.; 24 cm.
Radio, Television and Audio Test Instruments / King Gordon J.. - 2 edition. - London : Newnes-Butterworths, 1972. - 199 s.; 24 cm.