Easton, Mark. What is crime?. BBC News. 17 June 2010 [10 June 2013]. (原始内容存档于2013-02-27).
google.co.uk
books.google.co.uk
Farmer, Lindsay. "Crime, definitions of". In Cane and Conoghan (editors). The New Oxford Companion to Law. Oxford University Press. 2008. ISBN 978 0 19 929054 3. Page 263. Google Books (页面存档备份,存于互联网档案馆).
web.archive.org
Farmer, Lindsay. "Crime, definitions of". In Cane and Conoghan (editors). The New Oxford Companion to Law. Oxford University Press. 2008. ISBN 978 0 19 929054 3. Page 263. Google Books (页面存档备份,存于互联网档案馆).
Easton, Mark. What is crime?. BBC News. 17 June 2010 [10 June 2013]. (原始内容存档于2013-02-27).