TY  - RPRT
TI  - Puerto Rico; industrial mineral mines, prospects, and occurrences in the Mineral Resources Data System (MRDS)
AU  - G. J. Orris
AU  - Marguerite Carbonaro
AU  - M. S. with contributions by Allen
AU  - J. D. Bliss
AU  - A.H. Ruiz
AU  - Richard Kibbe
AU  - M.E. Paidakovich
AU  - N.J. Page
AU  - H. A. Pierce
AU  - J. G. Staude
PY  - 1992
DO  - 10.3133/ofr92244
UR  - https://pubs.usgs.gov/publication/ofr92244
ID  - ofr92244
ER  -