Abraham, T. P., & Walters, J. (1976). A union list of the papers of members of Congress from the Pacific Northwest. Washington State University Library.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Abraham, Terry P., و Janalee Walters. A Union List of the Papers of Members of Congress from the Pacific Northwest. Pullman: Washington State University Library, 1976.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Abraham, Terry P., و Janalee Walters. A Union List of the Papers of Members of Congress from the Pacific Northwest. Washington State University Library, 1976.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.