Columbia subject headings:
Floodplain ecology--Mississippi River Valley--Congresses.
Forested wetlands--Mississippi River Valley--Congresses.
Hardwoods--Ecology--Mississippi River Valley--Congresses.
Wetland forestry--Mississippi River Valley--Congresses.
Harvard subject headings:
Floodplain ecology--Mississippi River Valley--Congresses.
Forested wetlands--Mississippi River Valley--Congresses.
Hardwoods--Ecology--Mississippi River Valley--Congresses.
Wetland forestry--Mississippi River Valley--Congresses.
Princeton subject headings: