Advances in electron tube techniques : Proceedings of the fifth national conference September, 1960 / Edited by David Slater. - Oxford : Symposium Publications Division, Pergamon Press, c1961. - viii, 235 p. : illus. ; 28 cm. Includes index. Subjects--Topical Terms: Electron tubes. Dewey Class. No.: 621.384134 / NAA 1961