TY  - BOOK
AU  - Choudhary A.K.Hajra, Choudhary S.K.Hajra & Roy Nirjihar
TI  - Elements of Workshop Technology
SN  - 81-85099-14-6
U1  - 620.1 Cho 
PY  - 1964///
CY  - media promoters &publishers, mumbai
ER  -