Columbia subject headings:
American poetry--20th century.
Poetics.
Poetry, Modern--20th century.
Poetry--Themes, motives.
Poetry.
Poets, American.
Harvard subject headings:
American poetry--20th century
Poetics
Poetry
Poetry, Modern--20th century
Poetry--History and criticism
Poetry--Themes, motives
Poets, American
Princeton subject headings:
American poetry--20th century.
Poetics.
Poetry, Modern--20th century.
Poetry--Themes, motives.
Poetry.
Poets, American.