edited by George Clack
[publisher not identified], 1998
Buku Teks
edited by Burke Marshall
National Public Radio, 1982
Buku Teks
Nickel, James W., author
Blackwell , 2007
Buku Teks
[publisher not identified], 2001
Buku Teks
Grosz, Stephen, author
Sweet and Maxwell, 2000
Buku Teks