TY - RPRT TI - Compilation of water-quality data for the north coast limestone aquifers, Puerto Rico, 1951 to 1987 AU - Angel Roman-Mas AU - Orlando Ramos-Gines PY - 1988 DO - 10.3133/ofr87533 UR - https://pubs.usgs.gov/publication/ofr87533 ID - ofr87533 ER -