@misc{indiciae10dfe522faf0,
  title = {Physiographic diagram of the world ocean's seafloor; topography of the world ocean's seafloor (with land contours at same interval)},
  author = {Thomas E. Chase and B. A. Seekins and J. D. Young},
  year = {1981},
  doi = {10.3133/ofr82531},
  url = {https://pubs.usgs.gov/publication/ofr82531},
  note = {Source identifier: ofr82531}
}