Gellhorn, Ernest, author
West , 1994
Buku Teks
Gellhorn, Ernest, author
St.paul Minn, 1986
Buku Teks
Gellhorn, Ernest, author
West, 2004
Buku Teks
Harrison, Jeffrey L., author
West Publishing, 1995
Buku Teks
Eric A. Posner
Ashgate/Dartmouth, 2001
Buku Teks