[Her Majesty's Stationery Office]. (1990). South wales constabulary: Codes of practice ; for drivers/riders of police vehicles and incident managers in respect of emergency response an pursuits.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)[Her Majesty's Stationery Office]. South Wales Constabulary: Codes of Practice ; for Drivers/riders of Police Vehicles and Incident Managers in Respect of Emergency Response an Pursuits. [London], 1990.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)[Her Majesty's Stationery Office]. South Wales Constabulary: Codes of Practice ; for Drivers/riders of Police Vehicles and Incident Managers in Respect of Emergency Response an Pursuits. 1990.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.