Washington State Research Council. (1973). The Research Council's handbook: A compendium of statistical and explanatory information about state and local government in Washington (4th ed.).
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Washington State Research Council. The Research Council's Handbook: A Compendium of Statistical and Explanatory Information About State and Local Government in Washington. 4th ed. Olympia, Wash, 1973.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Washington State Research Council. The Research Council's Handbook: A Compendium of Statistical and Explanatory Information About State and Local Government in Washington. 4th ed. 1973.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.