@misc{indiciaeb564bb36f43c,
  title = {Relation of salinity to the calcium carbonate content of marine sediments},
  author = {P.D. Trask},
  year = {1938},
  doi = {10.3133/pp186n},
  url = {https://pubs.usgs.gov/publication/pp186N},
  note = {Source identifier: pp186N}
}