The radiotron designer's handbook
F. Langford-Smith 1904- (Fritz)
Harrison, N.J., Reproduced in U.S.A. by lithographic process under direction of Commercial Engineering Dept., RCA Victor Division, Radio Corporation of America 1945
Available at EPBC - Esc. Politécnica-Bib Central (621.396(004) L222ra3 )(GetIt)