@misc{indiciae7bd4823da10c,
  title = {Contributions to economic geology, 1905: Coal, lignite, and peat},
  author = {M. R. Campbell and Charles Butts and Ralph Arnold and N. M. Fenneman and H. S. Gale and W. T. Lee and F. C. Schrader and W. C. Phalen and G. H. Ashley and F. B. Peck and G. B. Richardson and J. A. Taff and N. H. Darton and C.A. Fisher and A.G. Leonard and A. C. Veatch},
  year = {1906},
  doi = {10.3133/b285f},
  url = {https://pubs.usgs.gov/publication/b285F},
  note = {Source identifier: b285F}
}