Cohen, Jean-Louis
Birkauser Verlag, 2000
Buku Teks
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