Riddell, P. (1989). The Thatcher Decade: How Britain has changed during the 1980s. Basil Blackwell.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Riddell, Peter. The Thatcher Decade: How Britain Has Changed During the 1980s. Oxford: Basil Blackwell, 1989.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Riddell, Peter. The Thatcher Decade: How Britain Has Changed During the 1980s. Basil Blackwell, 1989.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.