TY  - BOOK
AU  - Warrington Van C.
TI  - Protective Relays : : Theory and Practice 
SN  - 9780412153808
U1  - 621.317             
PY  - 1977///
CY  - New York
PB  - Chapmans and Hall
KW  - Electrical Controls, Power Electronics, Switching,Protective relay621.317
ER  -