Ulich, R. (1954). Three thousand years of educational wisdom: Selections from great documents. Harvard University.
Citace podle Chicago (17th ed.)Ulich, Robert. Three Thousand Years of Educational Wisdom: Selections from Great Documents. London: Harvard University, 1954.
Citace podle MLA (9th ed.)Ulich, Robert. Three Thousand Years of Educational Wisdom: Selections from Great Documents. Harvard University, 1954.
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