@misc{indiciaea2015f3a4744,
  title = {Analysis of selected limestone samples from Iliamna and Bruin Bays, Iliamna quadrangle, Alaska},
  author = {Robert L. Detterman},
  year = {1969},
  doi = {10.3133/ofr6970},
  url = {https://pubs.usgs.gov/publication/ofr6970},
  note = {Source identifier: ofr6970}
}