Fixed and variable capacitors [by] G. W. A. Dummer [and] Harold M. Nordenberg. Dummer, G. W. A. (Geoffrey William Arnold) Nordenberg, Harold M., joint author. Capacitors. Electronic apparatus and appliances. TK7872.C65 D8 537.242 19 DUF New York, McGraw-Hill, 1960. 1960. 1960 Text ix, 288 p. eng