TY  - BOOK
AU  - Choudhary S.K.Hajra, Choudhary A.K.Hajra & Bhattacharya S.C.
TI  - Elements of workshop technology
SN  - 0.906216.01.X
U1  - 620.1 Cho 
PY  - 1964///
CY  - media promoters & publishers, mumbai
ER  -