Electronic physics [by] L. Grant Hector, Herbert S. Lein [and] Clifford E. Scouten. Hector, Luther Grant, 1894- Lein, Herbert S. Scouten, Clifford E. Electricity. Light. Electronics. QC523 .H42 19 539.7211 HEE Philadelphia, Blakiston [1943] [1943] 1943 Text viii, 355p. : eng