Davis, Mike
Vintage Books, 1999
Buku Teks
Crewe, Sabrina, author
World Almanac Library, 2004
Buku Teks
Mills, C. Wright, author
Grove Press, 1961
Buku Teks
Mills, C. Wright, author
Oxford University Press, 1978
Buku Teks
Hibberd, Jack, author
Currency Press, 1988
Buku Teks