Columbia subject headings:
Burroughs, John, 1837-1921.
Whitman, Walt, 1819-1892--Friends and associates.
Whitman, Walt, 1819-1892.
Harvard subject headings:
Burroughs, John, 1837-1921
Whitman, Walt, 1819-1892
Whitman, Walt, 1819-1892--Friends and associates.
Princeton subject headings:
Burroughs, John, 1837-1921.
Whitman, Walt, 1819-1892--Friends and associates.
Whitman, Walt, 1819-1892.