@misc{indiciae09c7e409c58c,
  title = {Construction of digital bathymetry for the Gulf of Maine},
  author = {Ed T. Roworth and Rich P. Signell},
  year = {1998},
  doi = {10.3133/ofr98801},
  url = {https://pubs.usgs.gov/publication/ofr98801},
  note = {Source identifier: ofr98801}
}