TY  - BOOK
AU  - Roy, K. P
AU  - Hajra Choudhury
TI  - Elements of mechanical engineering
SN  - 9788185099057
U1  - 621 
PY  - 1990///
CY  - Bombay
PB  - Media promoters & publishers pvt, ltd
N1  - It include index p.555-561
ER  -