Gray, Richard, 1944-
American poetry of the twentieth century
Longman, 1991
Buku Teks
Berkowitz, Gerald M.
American drama of the twentieth century
Longman, 1994
Buku Teks
The Critical temper : a survey of modern criticism on English and American literature from the beginning to the twentieth century; Vol. III
edited by Martin Tucker
Ungar, 1988
Buku Referensi
Quinn, Arthur Hobson
A history of the American drama, from the beginning to the Civil War
Irvington Publishers, 1943
Buku Teks
Bonner, Thomas Neville
Our recent past : American civilization in the twentieth century
Prentice-Hall, 1963
Buku Teks