@misc{indiciaecbcec19153dd,
  title = {Sea floor topography of quadrangle 1 in the Stellwagen Bank National Marine Sanctuary off Boston, Massachusetts},
  author = {P. C. Valentine and J. L. Baker and T. S. Unger and E. T. Roworth},
  year = {1997},
  doi = {10.3133/ofr97502},
  url = {https://pubs.usgs.gov/publication/ofr97502},
  note = {Source identifier: ofr97502}
}