Research Institute for Advanced Study (Baltimore, Md.)\nUniversity of Maryland, College Park. (1963). Contributions to Differential Equations. Interscience Publishers.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Research Institute for Advanced Study (Baltimore, Md.)\nUniversity of Maryland, College Park. Contributions to Differential Equations. New York: Interscience Publishers, 1963.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Research Institute for Advanced Study (Baltimore, Md.)\nUniversity of Maryland, College Park. Contributions to Differential Equations. Interscience Publishers, 1963.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.