@misc{indiciaeb0218d2108c4,
  title = {Plant Communities of San Nicolas Island, California},
  author = {W. L. Halvorson and C. Schwemm and S. Junak and T. Keeney},
  year = {1996},
  doi = {10.3133/2002249},
  url = {https://pubs.usgs.gov/publication/2002249},
  note = {Source identifier: 2002249}
}