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Lua i Stíl Chicago (17ú heag.)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.
Lua MLA (8ú heag.)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.