TY  - RPRT
TI  - The United States 2001 National Land Cover Database
AU  - Collin G. Homer
AU  - Jon Dewitz
AU  - Joyce Fry
AU  - M. Nazmul Hossain
PY  - 2008
UR  - https://pubs.usgs.gov/publication/70263316
ID  - 70263316
ER  -