@misc{indiciaeffe1eaaa01a1,
  title = {Map of the Tehuantepec Railroad : from Jaltipec river to Boca del Monte},
  author = {tehuantepec railway company},
  year = {1851},
  url = {https://www.loc.gov/item/2021586151/},
  note = {Source identifier: 2021586151}
}