@misc{indiciaef70acf02e3ba,
  title = {Manganese deposits near Walnut Grove, Etowah and Blount Counties, Alabama},
  author = {G. W. Stose},
  year = {1943},
  doi = {10.3133/ofr4323},
  url = {https://pubs.usgs.gov/publication/ofr4323},
  note = {Source identifier: ofr4323}
}