Columbia subject headings:
Duncan, Robert, 1919-1988.
Gay men--United States--Biography.
Poets, American--20th century--Biography.
Harvard subject headings:
Duncan, Robert, 1919-1988.
Gay men--United States--Biography
Homosexuality and literature--United States.
Poets, American--20th century--Biography
Princeton subject headings:
Duncan, Robert, 1919-1988.
Gay men--United States--Biography.
Poets, American--20th century--Biography.