@misc{indiciae8a3c3876aaa2,
  title = {Map showing free-air gravity anomalies off the coasts of Venezuela and Trinidad-and-Tobago},
  author = {D. W. Folger and B.J. Irwin and J.R. McCullough and W.J. Strahle and C.O. Bowin and C. F. Polloni},
  year = {1991},
  doi = {10.3133/mf2097b},
  url = {https://pubs.usgs.gov/publication/mf2097B},
  note = {Source identifier: mf2097B}
}