Author: QAMPBELL (George Ashley)

Description

•f9SITORY QAMPBELL (George Ashley). The Co11ecte papers of G. A. Campbell, research engineer of the American Telephone and Telegraph Company. [Wit0ha foreword by V. Bush, an introduction by i. H. Colpitts, and a bibliography.] pp. xii. ÷ 548. Portrait, d.iarams, folded oharts and tables. •s:.0. New York, 1937.

Card ID: 513