@misc{indiciae6bbd9a10108b,
  title = {Status of the West Indian manatee (Trichechus manatus) in Puerto Rico},
  author = {J.N. Powell and D.W. Belitsky and G. B. Rathbun},
  year = {1981},
  doi = {10.2307/1380417},
  url = {https://pubs.usgs.gov/publication/1007490},
  note = {Source identifier: 1007490}
}