TY  - BOOK
AU  - Hajra Choudhury, S K  .
AU  - Hajra Choudhury,A K.
TI  - Elements of workshop technology / 
U1  - 621.9 
PY  - 1991///
CY  - Bombay : 
PB  - Media Promoters and Publishers Pvt. Ltd.  , 
N1  - 18241 CSS
ER  -