@misc{indiciae5935c7ddf63d,
  title = {Semilla Sandstone, a new member of the Mancos Shale in the southeastern part of the San Juan Basin, New Mexico},
  author = {C. H. Dane and Erle G. Kauffman and William Aubrey Cobban},
  year = {1968},
  doi = {10.3133/b1254f},
  url = {https://pubs.usgs.gov/publication/b1254F},
  note = {Source identifier: b1254F}
}