@misc{indiciaed9aea65cf22a,
  title = {Map showing distribution of surficial sediment, Gulf of Maine and Georges Bank},
  author = {L. J. Poppe and J. S. Schlee and Bradford Butman and C.M. Lane},
  year = {1989},
  doi = {10.3133/i1986a},
  url = {https://pubs.usgs.gov/publication/i1986A},
  note = {Source identifier: i1986A}
}