Lindberg, L. (1954). The democratic classroom: A guide for teachers. Bureau of Publications, Teachers College, Columbia University.
Citace podle Chicago (17th ed.)Lindberg, Lucile. The Democratic Classroom: A Guide for Teachers. New York: Bureau of Publications, Teachers College, Columbia University, 1954.
Citace podle MLA (8th ed.)Lindberg, Lucile. The Democratic Classroom: A Guide for Teachers. Bureau of Publications, Teachers College, Columbia University, 1954.
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