TY  - BOOK
AU  - Dummer,G.W.A.
TI  - Varibale resistors and potentiometers
U1  - 621.384133 
PY  - 1963///
CY  - London
PB  - Sir ISAAC Pitman
KW  - Electric resistors
KW  - Potentiometer
KW  - Varistors
N1  - Includes index; Includes bibliography: p. 215-225
ER  -