@misc{indiciaef80f8ef0f898,
  title = {Gasteropoda and Cephalopoda of the Raritan clays and Greensand marls of New Jersey},
  author = {Robert Parr Whitfield},
  year = {1892},
  doi = {10.3133/m18},
  url = {https://pubs.usgs.gov/publication/m18},
  note = {Source identifier: m18}
}