@misc{indiciae03ae384d413a,
  title = {Organochlorine residues in bat guano from nine Mexican caves, 1991},
  author = {Donald R. Clark and A. Moreno-Valdez and Miguel A. Mora},
  year = {1995},
  doi = {10.1007/bf00116344},
  url = {https://pubs.usgs.gov/publication/5222692},
  note = {Source identifier: 5222692}
}