Columbia subject headings:
Arts--United States.
United States--Intellectual life--20th century.
Harvard subject headings:
Arts--United States
Copland, Aaron, 1900-1990--Criticism and interpretation.
Copland, Aaron, 1900-1990--Friends and associates--Exhibitions.
United States--Intellectual life--20th century.
Princeton subject headings:
Arts--United States.
Copland, Aaron, 1900-1990--Criticism and interpretation.
Copland, Aaron, 1900-1990--Friends and associates.
Copland, Aaron, 1900-1990--Views on art.
United States--Intellectual life--20th century.