Columbia subject headings:
Harvard subject headings:
Art, Modern--20th century--Social aspects.
Creation (Literary, artistic, etc.)
Environment (Art)
Nature (Aesthetics)
Princeton subject headings:
Art, Modern--20th century--Economic aspects.
Art, Modern--20th century--Social aspects.
Artists--Psychology.
Creation (Literary, artistic, etc.)
Environment (Aesthetics)
Environment (Art)
Nature (Aesthetics)