editor, Paul Boyer
Ivan R. Dee, 1900
Buku Referensi
Mervin, David, author
Longman, 1990
Buku Teks
Hertsgaard, Mark, author
Schoken Books, 1989
Buku Teks
Smith, David, 1952-, author
Writers and Readers Publishing, 1984
Buku Teks SO
edited by Arnold J. Meltsner
Institute for Contemporary Studies, 1981
Buku Teks