TY  - BOOK
AU  - Tooker,Edwin Wilson
TI  - Gold in porphyry copper systems
PY  - 1990///
CY  - Washington, D. C.
PB  - United States Goverment Printing office
KW  - Golg ores
KW  - West (United States)
KW  - Copper ores
KW  - Geology
N1  - Includes bibliographical references
ER  -