@misc{indiciaeaf0310545062,
  title = {Cretaceous rocks from southwestern Montana to southwestern Minnesota, northern Rocky Mountains, and Great Plains},
  author = {T. S. Dyman and W. A. Cobban and J. E. Fox and R. H. Hammond and D. J. Nichols and W. J. Perry and K. W. Porter and D. D. Rice and D. R. Setterholm and G. W. Shurr and R. G. Tysdal and J. C. Haley and E. B. Campen},
  year = {1994},
  doi = {10.1130/spe287-p5},
  url = {https://pubs.usgs.gov/publication/70186522},
  note = {Source identifier: 70186522}
}