Columbia subject headings:
Harvard subject headings:
Geological maps.
Geology--Missouri--Dent County--Maps.
Geology--Missouri--Shannon County--Maps.
Geology--Missouri--Texas County--Maps.
Maps
Princeton subject headings:
Geological maps.
Geology--Missouri--Dent County--Maps.
Geology--Missouri--Shannon County--Maps.
Geology--Missouri--Texas County--Maps.
Maps.
Quadrangle maps.