Columbia subject headings:
Harvard subject headings:
American poetry--20th century
American poetry--Great Plains.
American poetry--West (U.S.)
Great Plains--Poetry.
West (U.S.)--Poetry.
Princeton subject headings:
American poetry--20th century.
American poetry--Great Plains.
American poetry--West (U.S.)
Great Plains--Poetry.
Poetry.
West (U.S.)--Poetry.