TY  - BOOK
AU  - Penketh,J.R.
TI  - Light current applications 3 checkbook
T2  - Butterworths technical and scientific checkbooks
SN  - 0408006870
PY  - 1983///
CY  - London
PB  - Butterworths
KW  - Electric engineering
N1  - Includes index
ER  -