TY  - RPRT
TI  - Invasive plant species: Inventory, mapping, and monitoring - A national strategy
AU  - J. Larry Ludke
AU  - Frank D’Erchia
AU  - Jan Coffelt
AU  - Leanne Hanson
PY  - 2002
UR  - https://pubs.usgs.gov/publication/53892
ID  - 53892
ER  -