TY  - BOOK
AU  - YANNOPOULOS, J C
TI  - International Symposium on Copper Extraction and Refining
U1  - F19113 
PY  - 1976///
CY  - NEW YORK
PB  - AMERICAN INSTITUTE OF MINING METALLURGICL AND PETROLEUM ENGINEERS
KW  - COPPER --METALLURGY --CONGRESSES., MATELLURGY
ER  -