TY  - BOOK
AU  - Rosenqvist, Terkel
TI  - Principles of extractive metallurgy 
T2  - Materials science and engineering series
SN  - 070538476
U1  - 669 
PY  - 1974///
CY  - New York
PB  - McGraw-Hill Book Company
KW  - Metallurgy
KW  - MM313
ER  -