TY  - RPRT
TI  - Classification of wetlands of the United States
AU  - Alexander C. Martin
AU  - Neil Hotchkiss
AU  - Francis M. Uhler
AU  - Warren S. Bourn
PY  - 1953
UR  - https://pubs.usgs.gov/publication/ssrw20
ID  - ssrw20
ER  -