@misc{indiciaec16f9f40e1be,
  title = {Vegetation of the Patuxent Research Refuge, Maryland},
  author = {Neil Hotchkiss and Robert E. Stewart},
  year = {1947},
  doi = {10.2307/2421630},
  url = {https://pubs.usgs.gov/publication/5220569},
  note = {Source identifier: 5220569}
}