TY  - BOOK
AU  - Lythall,P Lythall Reginald T.
TI  - J & P Switchgear Book 
SN  - 0408000694 (Hardcover)
U1  - 621.317LYT 
PY  - 1994///.
CY  - New Delhi
PB  - Aditya Book Pvt Ltd
KW  - Electric Switchgear
ER  -