Microwave tubes and semiconductor devices [by] G.D. Sims and I.M. Stephenson. Sims, Geoffrey Donald. Stephenson, Ian Meredith, joint author. Microwave tubes. Semiconductors. TK7872.V3 S53 1963 621.381 SIM Includes index. [New York] Interscience Publishers [c1963] [c1963] 1963 Text 388 p. eng