@misc{indiciaeb67b4a7231b6,
  title = {Micropaleontological zonation (foraminifers, algae) and stratigraphy, Carboniferous Peratrovich Formation, southeastern Alaska},
  author = {Bernard L. Mamet and Sylvie Pinard and Augustus K. Armstrong},
  year = {1993},
  doi = {10.3133/b2031},
  url = {https://pubs.usgs.gov/publication/b2031},
  note = {Source identifier: b2031}
}