Leestma, R., & Walberg, H. J. (1992). Japanese educational productivity. Center for Japanese Studies, University of Michigan.
Citace podle Chicago (17th ed.)Leestma, Robert, a Herbert J. Walberg. Japanese Educational Productivity. Ann Arbor: Center for Japanese Studies, University of Michigan, 1992.
Citace podle MLA (9th ed.)Leestma, Robert, a Herbert J. Walberg. Japanese Educational Productivity. Center for Japanese Studies, University of Michigan, 1992.
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