Cavadino, Michael and Dignan, James (2007) The Penal System: An Introduction. SAGE, London. ISBN 978-1-4129-2946-2
Cavadino, Michael and Dignan, James (2006) Penal Policy and Political Economy. Criminology and Criminal Justice, 6 (4). pp. 435-456. ISSN 1748-8958
Cavadino, Michael and Dignan, James (2006) Penal Systems: A Comparative Approach. SAGE, London. ISBN 9780761952022