@misc{indiciae0bf78646425f,
  title = {Reproductive activity of male Crotalus atrox and C. scutulatus (Reptilia: Viperidae) in northeastern Chihuahua, Mexico},
  author = {J.S. Jacob and S.R. Williams and R.P. Reynolds},
  year = {1987},
  url = {https://pubs.usgs.gov/publication/5223753},
  note = {Source identifier: 5223753}
}