Washington State Planning Council. (1938). A survey of the common school system of Washington with suggested first steps toward its progressive development and improvement.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Washington State Planning Council. A Survey of the Common School System of Washington with Suggested First Steps Toward Its Progressive Development and Improvement. [Olympia, 1938.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Washington State Planning Council. A Survey of the Common School System of Washington with Suggested First Steps Toward Its Progressive Development and Improvement. 1938.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.