Her Majesty's Stationery Office. (1989). South wales constabulary: Shot guns ; a guide for the enquiry officer.
Lua i Stíl Chicago (17ú heag.)Her Majesty's Stationery Office. South Wales Constabulary: Shot Guns ; a Guide for the Enquiry Officer. London, 1989.
Lua MLA (8ú heag.)Her Majesty's Stationery Office. South Wales Constabulary: Shot Guns ; a Guide for the Enquiry Officer. 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.