Columbia subject headings:
Frost, Robert, 1874-1963--Friends and associates.
Frost, Robert, 1874-1963.
Newdick, Robert S. (Robert Spangler), -1939.
Harvard subject headings:
Frost, Robert, 1874-1963
Frost, Robert, 1874-1963--Friends and associates.
Newdick, Robert S. (Robert Spangler), -1939--Friends and associates.
Newdick, Robert S. (Robert Spangler), -1939.
Poets, American--20th century--Biography
Princeton subject headings:
Frost, Robert, 1874-1963--Friends and associates.
Frost, Robert, 1874-1963.
Newdick, Robert S. (Robert Spangler), -1939--Friends and associates.
Poets, American--20th century--Biography.