@misc{indiciae815f62efe31c,
  title = {Water management by early people in the Yucatan, Mexico},
  author = {W. Back},
  year = {1995},
  doi = {10.1007/bf00766752},
  url = {https://pubs.usgs.gov/publication/70018958},
  note = {Source identifier: 70018958}
}