TY  - BOOK
AU  - Roy, K.P Choudhury, Hajra, S.K 
TI  - Elements of mechanical engineering 
SN  - 81-85-099-05-7 
U1  - 621.1 ROY  
PY  - 1998///
CY  - Media promoters and publishers 
PB  - Bombay 
KW  - MECHANICHAL
ER  -