Bullough, O. (2022). Butler to the world: How Britain helps the world's worst people launder money, commit crimes, and get away with anything (First U.S. edition.). St. Martin's Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Bullough, Oliver. Butler to the World: How Britain Helps the World's Worst People Launder Money, Commit Crimes, and Get Away with Anything. First U.S. edition. New York, NY: St. Martin's Press, 2022.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Bullough, Oliver. Butler to the World: How Britain Helps the World's Worst People Launder Money, Commit Crimes, and Get Away with Anything. First U.S. edition. St. Martin's Press, 2022.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.