TY  - RPRT
TI  - National Wildlife Refuge System: Ecological context and integrity
AU  - J. M. Scott
AU  - T. Loveland
AU  - K. Gergely
AU  - J. Strittholt
AU  - N. Staus
PY  - 2004
UR  - https://pubs.usgs.gov/publication/70026619
ID  - 70026619
ER  -