Keywords: American literature History and criticism. 20th century ; American literature History and criticism ; 20th century ; American literature History and criticism 20th century ; American literature History and criticism 20th century ; American literature History and criticism. 20th century ; American literature ; Criticism, interpretation, etc ; American literature ; 20th century ; History and criticism ; LITERARY CRITICISM ; American ; General ; Literatur ; USA ; Electronic books. ; Electronic books. ; Electronic books Criticism, interpretation, etc ; Aufsatzsammlung ; USA ; Literatur ; Geschichte 1900-2000 ; USA ; Literatur ; Geschichte 1900-2000