TY  - BOOK
AU  - Titley,Spencer Rowe
TI  - Advances in geology of the porphyry copper deposits: southwestern North America 
SN  - 0816507309
PY  - 1982///
CY  - Tucson, Ariz.
PB  - University of Arizona Press
KW  - Copper ores
KW  - North America
KW  - Porphyry
ER  -