Columbia subject headings:
Art, American--20th century.
Artists--United States--Biography.
Motherwell, Robert.
Painters--United States--Biography.
Harvard subject headings:
Art, American--20th century
Artists--United States--Biography.
Motherwell, Robert
Painters--United States--Biography.
Princeton subject headings:
Art, American--20th century.
Artists--United States--Biography.
Motherwell, Robert.
Painters--United States--Biography.