@misc{indiciae2c2aa9f8db91,
  title = {The relation of biology to physiography},
  author = {C. W. Hayes and M. E. Campbell},
  year = {1900},
  doi = {10.1126/science.12.291.131},
  url = {https://pubs.usgs.gov/publication/70010610},
  note = {Source identifier: 70010610}
}