University of Washington. Bureau of Governmental Research and Services. (1967). Washington's constitutional dilemma: Proceedings. Bureau of Governmental Research and Services, University of Washington; distributed by University of Washington Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)University of Washington. Bureau of Governmental Research and Services. Washington's Constitutional Dilemma: Proceedings. Seattle: Bureau of Governmental Research and Services, University of Washington; distributed by University of Washington Press, 1967.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)University of Washington. Bureau of Governmental Research and Services. Washington's Constitutional Dilemma: Proceedings. Bureau of Governmental Research and Services, University of Washington; distributed by University of Washington Press, 1967.