@misc{indiciaef1a253854ec4,
  title = {Coal resources of the Joplin 1° x 2° quadrangle, Kansas and Missouri},
  author = {L. L. Brady and L. M. Nuelle and D. B. Haug and D. C. Smith and J. L. Bostic and J. C. Jcquess},
  year = {1994},
  doi = {10.3133/i2426a},
  url = {https://pubs.usgs.gov/publication/i2426A},
  note = {Source identifier: i2426A}
}