Leestma, R., & Walberg, H. J. (1992). Japanese educational productivity. Center for Japanese Studies, University of Michigan.
Čikaški stil citiranja (17. izdanje)Leestma, Robert, i Herbert J. Walberg. Japanese Educational Productivity. Ann Arbor: Center for Japanese Studies, University of Michigan, 1992.
MLA način citiranja (9. izdanje)Leestma, Robert, i Herbert J. Walberg. Japanese Educational Productivity. Center for Japanese Studies, University of Michigan, 1992.
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