@misc{indiciae013afbdfe969,
  title = {Invasive plant species: Inventory, mapping, and monitoring - A national strategy},
  author = {J. Larry Ludke and Frank D’Erchia and Jan Coffelt and Leanne Hanson},
  year = {2002},
  url = {https://pubs.usgs.gov/publication/53892},
  note = {Source identifier: 53892}
}