@misc{indiciaecdff8b1a8303, title = {A Hydrologic excursion to Puerto Rico's southern plain}, author = {R.A. Renken and Pedro Diaz and Fernando Gómez-Gómez and Vicente Quinones-Aponte}, year = {1990}, doi = {10.3133/ofr90365}, url = {https://pubs.usgs.gov/publication/ofr90365}, note = {Source identifier: ofr90365} }