Educational Policies Commission. (1940). Learning the ways of democracy: A case book of civic education. Educational Policies Commission, National Education Association of the United States and the American Association of School Administrators.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Educational Policies Commission. Learning the Ways of Democracy: A Case Book of Civic Education. Washington, D.C.: Educational Policies Commission, National Education Association of the United States and the American Association of School Administrators, 1940.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Educational Policies Commission. Learning the Ways of Democracy: A Case Book of Civic Education. Educational Policies Commission, National Education Association of the United States and the American Association of School Administrators, 1940.