@misc{indiciae604aa7571fe1,
  title = {Plant species richness at different scales in native and exotic grasslands in Southeastern Arizona},
  author = {S.P. McLaughlin and Janice E. Bowers},
  year = {2006},
  url = {https://pubs.usgs.gov/publication/70030539},
  note = {Source identifier: 70030539}
}