@misc{indiciae4c1c1324e8a8,
  title = {Transportation map of Delaware, Maryland, and Virginia},
  author = {united states. federal railroad administration. office of policy and program development and geological survey (u.s.)},
  year = {1976},
  url = {https://www.loc.gov/item/77694822/},
  note = {Source identifier: 77694822}
}