Columbia subject headings:
Ballads, English--West (U.S.)--Texts.
Cowboys--Poetry.
Folk songs, English--West (U.S.)--Texts.
Harvard subject headings:
American poetry--West (U.S.)
Ballads, English--West (U.S.)--Texts.
Cowboys--Poetry
Folk songs, English--West (U.S.)--Texts.
Frontier and pioneer life--Poetry
Narrative poetry, American.
West (U.S.)--Poetry.
Princeton subject headings: