TY  - RPRT
TI  - Knowledge-based GIS: An expert system approach for managing wetlands
AU  - Wei Ji
AU  - James B. Johnston
AU  - Marcia McNiff
AU  - Loyd C. Mitchell
PY  - 1992
UR  - https://pubs.usgs.gov/publication/70204803
ID  - 70204803
ER  -