The Routledge encyclopedia of American poetry: the twentieth century/

Eitemau Tebyg

• The Oxford handbook of modern and contemporary American poetry/
  Cyhoeddwyd: (2012)
• The Oxford companion to twentieth-century poetry in English /
  Cyhoeddwyd: (1994)
• New American poetry.
  gan: Monaco, Richard
  Cyhoeddwyd: (1973)
• Great modern poets
  gan: Schmidt, Michael.,ed
• Twentieth-century American poetry
  gan: Macgowan, Christopher
  Cyhoeddwyd: (2004)