TY  - RPRT
TI  - Camping impact management at Isle Royale National Park: an evaluation of visitor activity containment policies from the perspective of social conditions
AU  - T. A. Farrell
AU  - J. L. Marion
PY  - 2000
UR  - https://pubs.usgs.gov/publication/5211301
ID  - 5211301
ER  -