@misc{indiciae34b18b559745,
  title = {Map of the western railroads tributary to Philadelphia, with their rival lines; prepared under the direction of Charles Ellet Jr., Civil Engineer},
  author = {ellet, charles},
  year = {1851},
  url = {https://www.loc.gov/item/98688355/},
  note = {Source identifier: 98688355}
}