Washington State Federation of Taxpayers' Associations. (1924). Tax facts. State of Washington, State Federation of Taxpayers' Associations.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Washington State Federation of Taxpayers' Associations. Tax Facts. Seattle, Wash.: State of Washington, State Federation of Taxpayers' Associations, 1924.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Washington State Federation of Taxpayers' Associations. Tax Facts. State of Washington, State Federation of Taxpayers' Associations, 1924.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.