| Reference | {Deposit:: COX, DENNIS P., AND BRIGGS, REGINALD P., 1973, METALLOGENIC MAP OF PUERTO RICO: U.S. GEOLOGICAL SURVEY, MISCELLANEOUS GEOLOGIC INVESTIGATIONS MAP I-721, ACCOMPANIED BY EXPLANATORY PAMPHLET, 6 P.}{Deposit:: BERGEY, W.R.,1958, REPORT ON THE MINERAL DEPOSITS OF GURABO AREA, CAGUAS CONCESSION; IN REPOSITORY OF THE DEPT. OF NATURAL RESOURCES, PUERTO RICO} |