TY  - RPRT
TI  - Vegetation alteration along trails in Shenandoah National Park, Virginia
AU  - Christine N. Hall
AU  - Fred R. Kuss
PY  - 1989
DO  - 10.1016/0006-3207(89)90119-5
UR  - https://pubs.usgs.gov/publication/70198925
ID  - 70198925
ER  -