Columbia subject headings:
Frost, Robert, 1874-1963.
Harvard subject headings:
Blumenthal, Joseph, 1897-1990--Friends and associates.
Frost, Robert, 1874-1963--Friends and associates.
Poets, American--20th century--Biography
Printers--United States--Biography
Princeton subject headings:
Frost, Robert, 1874-1963--Bibliography.