TY  - BOOK
ED  - Copper Development Association.
TI  - Copper for earthing
U1  - 621.319 
PY  - 1938///
CY  - London
PB  - Copper Development Association
KW  - Copper
KW  - Electric currents
KW  - Grounding
KW  - MCE
N1  - "C. D. A. publication no. 30."; 0; 0; 0; 621_319000000000000_COP
ER  -