TY  - GEN
AU  - Ray H S,Ghosh .A
TI  - Principles of Extractive Metallurgy
T2  - 23558
SN  - 8122403220
U1  - 669 
PY  - 2007///
CY  - New Delhi
PB  - New Age International
KW  - Principles of Extractive Metallurgy
ER  -