TY  - BOOK
AU  - Gupta; S.K., Sabharwal;R.C., Verma;O.P.
TI  - Mechanics & electronic device
SN  - 81-8045-073-2.
U1  - 531 G93M 
PY  - 2011///
CY  - New Delhi
PB  - R. Chand
ER  -