Thornton, S. (1995). Children solving problems. Harvard University Press.
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Dyfyniad Arddull Chicago
Thornton, Stephanie. Children Solving Problems. Cambridge, MA: Harvard University Press, 1995.
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Dyfyniad MLA
Thornton, Stephanie. Children Solving Problems. Harvard University Press, 1995.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.