Slapper, Gary, author
Cavendish Publishing Limited, 2000
Buku Teks
Slapper, Gary
Routledge, 2010-2011
Buku Teks
Plum, Werner
Hildesheimer Druck-und Verlags-GmbH, 1974
Buku Teks
Keenan, Denis, author
Pitman, 1992
Buku Teks
Macaulay, T.B. (Thomas Babington), author
Routledge, 1985
Buku Teks