Richards, A. (1996). Comovements in National Stock Market Returns: Evidence of Predictability But Not Cointegration. International Monetary Fund.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Richards, Anthony. Comovements in National Stock Market Returns: Evidence of Predictability But Not Cointegration. Washington, D.C.: International Monetary Fund, 1996.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Richards, Anthony. Comovements in National Stock Market Returns: Evidence of Predictability But Not Cointegration. International Monetary Fund, 1996.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.