@misc{indiciae09d184f3dab8,
  title = {Introductory note; Ocher deposits of eastern Pennsylvania; Paint-ore deposits near Lehigh Gap, Pennsylvania; Survey publications on mineral paint},
  author = {J.C. Stoddard and A.C. Callen and Fred T. Agthe and John L. Dynan},
  year = {1910},
  doi = {10.3133/b430g},
  url = {https://pubs.usgs.gov/publication/b430G},
  note = {Source identifier: b430G}
}