Voice of America Forum Lectures , 1968
Buku Teks
Cohen, Saul B.
Vioce of America Forum Lectures , 1968
Buku Teks
Cohen, Morris L., author
West Publishing , 1978
Buku Teks
Cohen, Sharleen Cooper
Headline, 1993
Buku Teks
Cohen, David
Routledge Press, 2002
Buku Teks