@misc{indiciaeb90ca26efcc4, title = {Surface electromagnetic geophysical exploration of the ground-water resources of Isla de Mona, Puerto Rico, a caribbean carbonate island}, author = {M.I. Martinez and Joseph W. Troester and Ronald T. Richards}, year = {1995}, doi = {10.1007/bf03175403}, url = {https://pubs.usgs.gov/publication/70171330}, note = {Source identifier: 70171330} }