Gully-Hart, P. (2005). Cooperation between central authorities and police officials : The changing face of international legal assistance in criminal matters.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Gully-Hart, Paul. Cooperation Between Central Authorities and Police Officials : The Changing Face of International Legal Assistance in Criminal Matters. 2005.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Gully-Hart, Paul. Cooperation Between Central Authorities and Police Officials : The Changing Face of International Legal Assistance in Criminal Matters. 2005.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.