Columbia subject headings:
Academic librarians--United States--Biography.
Academic libraries--United States.
Downs, Robert B. (Robert Bingham), 1903-1991.
Library science--Philosophy.
Harvard subject headings:
Academic librarians--United States--Biography.
Academic libraries--United States.
Downs, Robert B. (Robert Bingham), 1903-1991
Library science--Philosophy
Princeton subject headings:
Academic librarians--United States--Biography.
Academic libraries--United States.
Downs, Robert B. (Robert Bingham), 1903-1991.
Library science--Philosophy.