University of Washington. Bureau of Governmental Research and Services. (1959). Twenty-five years of governmental research and service: A history of the Bureau of Governmental Research and Services at the University of Washington. Distributed by University of Washington Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)University of Washington. Bureau of Governmental Research and Services. Twenty-five Years of Governmental Research and Service: A History of the Bureau of Governmental Research and Services at the University of Washington. Seattle: Distributed by University of Washington Press, 1959.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)University of Washington. Bureau of Governmental Research and Services. Twenty-five Years of Governmental Research and Service: A History of the Bureau of Governmental Research and Services at the University of Washington. Distributed by University of Washington Press, 1959.