Whatmough, Joshua
The New American Library, 1956
Buku Teks
edited by Albert H. Marckwardt
National Council of Teachers of English, 1968
Buku Teks
Psychology Press , 1999
Buku Teks
Kennedy, Dora, author
National Texbook, 1994
Buku Teks
Chomsky, Noam, author
Praeger , 1986
Buku Teks