Thomas, R. M. (1990). Encyclopedia of Human Development and Education: Theory Research and Studies. Pergamon Press.
Chicago Stili AlıntıThomas, R Murray. Encyclopedia of Human Development and Education: Theory Research and Studies. Oxford: Pergamon Press, 1990.
MLA AlıntıThomas, R Murray. Encyclopedia of Human Development and Education: Theory Research and Studies. Pergamon Press, 1990.
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