00784nam0-22002771i-450-990000009350403321000000935FED01000000935(Aleph)000000935FED0100000093520011111d--------km-y0itay50------baitay-------001yyFOUNDATIONS of future electronicsedited by D. B. Langmuir and W. D. Hershberger.New YorkMcGraw-Hill book company1961IX, 514 p.ill.24 cm621.381Hershberger,William DelmarLangmuir,David B.ITUNINARICAUNIMARCBK99000000935040332113 B 64 1424435FINBCFINBCUNINAING01