TY  - RPRT
TI  - A geochemical reconnaissance of the Utuado Batholith and vicinity, Puerto Rico
AU  - Robert E. Learned
AU  - T.H. Hickey
AU  - Ileana. Perez de Gonzales
PY  - 1981
DO  - 10.3133/ofr811131
UR  - https://pubs.usgs.gov/publication/ofr811131
ID  - ofr811131
ER  -