@misc{indiciae5b4986e56009,
  title = {Divisions of potential fracture permeability, based on distribution of structures and linear features in sedimentary rocks, northern Great Plains-Rocky Mountains region of Montana, North Dakota, South Dakota, Wyoming, and northern Nebraska},
  author = {Maurice E. Cooley},
  year = {1986},
  doi = {10.3133/i1687},
  url = {https://pubs.usgs.gov/publication/i1687},
  note = {Source identifier: i1687}
}