@misc{indiciae07530678f79b,
  title = {Trade map of the north western states showing the counties, towns and rail roads, etc},
  author = {g.w. \& c.b. colton \& co},
  year = {1870},
  url = {https://www.loc.gov/item/98688398/},
  note = {Source identifier: 98688398}
}