Columbia subject headings:
Cowboys in art.
Dill, Klaus, 1922-2000--Notebooks, sketchbooks, etc.
Indians in art.
West (U.S.)--In art.
Harvard subject headings:
Cowboys in art.
Dill, Klaus, 1922-2000--Notebooks, sketchbooks, etc.
Indians in art
West (U.S.)--In art.
Princeton subject headings: