Columbia subject headings:
Portrait photography.
Warhol, Andy, 1928-1987--Friends and associates--Portraits.
Warhol, Andy, 1928-1987--Portraits.
Harvard subject headings:
Artists--Portraits
Celebrities--Portraits
Portrait photography
Warhol, Andy, 1928-1987--Friends and associates--Portraits.
Warhol, Andy, 1928-1987--Portraits.
Princeton subject headings:
Portrait photography.
Warhol, Andy, 1928-1987--Friends and associates--Portraits.
Warhol, Andy, 1928-1987--Portraits.