TY  - BOOK
AU  - Ray H.S and Ghosh. A 
TI  - Principles of Extractive Metallurgy
SN  - 9789386418456
U1  - 669 
PY  - 2007///
CY  - New Age, New Delhi 
PB  - New Age, New Delhi 
KW  - METALURGY
ER  -