Institute of Government (University of Washington). (1966). Washington State Constitution - stumbling block or stepping stone?: Proceedings of the thirty-first annual summer Institute of Government, 1966. Bureau of Governmental Research and Services, University of Washington : distributed by University of Washington Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Institute of Government (University of Washington). Washington State Constitution - Stumbling Block or Stepping Stone?: Proceedings of the Thirty-first Annual Summer Institute of Government, 1966. Seattle: Bureau of Governmental Research and Services, University of Washington : distributed by University of Washington Press, 1966.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Institute of Government (University of Washington). Washington State Constitution - Stumbling Block or Stepping Stone?: Proceedings of the Thirty-first Annual Summer Institute of Government, 1966. Bureau of Governmental Research and Services, University of Washington : distributed by University of Washington Press, 1966.