TY  - RPRT
TI  - Managing visitor impacts in parks: A multi-method study of the effectiveness of alternative management practices
AU  - L.O. Park
AU  - J. L. Marion
AU  - R.E. Manning
AU  - S.R. Lawson
AU  - C. Jacobi
PY  - 2008
UR  - https://pubs.usgs.gov/publication/5224932
ID  - 5224932
ER  -