TY - RPRT TI - A Hydrologic excursion to Puerto Rico's southern plain AU - R.A. Renken AU - Pedro Diaz AU - Fernando Gómez-Gómez AU - Vicente Quinones-Aponte PY - 1990 DO - 10.3133/ofr90365 UR - https://pubs.usgs.gov/publication/ofr90365 ID - ofr90365 ER -