Ford, W. B. (1960). Studies on divergent series and summability and the asymptotic developments of functions defined by Maclaurin series. Chelsea Publishing Company.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ford, Walter Burton. Studies on Divergent Series and Summability and the Asymptotic Developments of Functions Defined by Maclaurin Series. New York, N. Y: Chelsea Publishing Company, 1960.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Ford, Walter Burton. Studies on Divergent Series and Summability and the Asymptotic Developments of Functions Defined by Maclaurin Series. Chelsea Publishing Company, 1960.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.