Columbia subject headings:
American poetry--20th century--History and criticism.
Frost, Robert, 1874-1963.
Harvard subject headings:
American poetry--20th century--History and criticism
Frost, Robert, 1874-1963
Princeton subject headings:
Authorship--Quotations, maxims, etc.
Creative writing--Quotations, maxims, etc.
Frost, Robert, 1874-1963--Quotations.
Quotations.