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Dyfyniad Arddull ChicagoMeier, John, and Paula J. Malone. Facilitating Children's Development: A Systematic Guide for Open Learning. Baltimore: University Park Press, 1979.
Dyfyniad MLAMeier, John, and Paula J. Malone. Facilitating Children's Development: A Systematic Guide for Open Learning. University Park Press, 1979.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.