TY  - BOOK
AU  - Cox,Dennis P.
ED  - United States
TI  - Geology of the Tanama and Helecho porphyry copper deposits and vicinity, Puerto Rico
U1  - 553.430972953 19th ed.
PY  - 1985///.
CY  - Washington: 
PB  - United States Government Printing Office, 
KW  - Porphyry
KW  - Puerto Rico
KW  - Tanama Region
KW  - Copper ores
N1  - One map on folded leaf in pocket; Conduct map: Geology of the Tanama and Helecho porphyry copper deposits and Vicinity, Puerto Rico; Includes bibliographical references (p. 58-59)
ER  -