Schwarts, S. L. (2007). Teaching young children mathematics. Atlantic publishers.
Dyfyniad Arddull ChicagoSchwarts, Sydney L. Teaching Young Children Mathematics. New Delhi: Atlantic publishers, 2007.
Dyfyniad MLASchwarts, Sydney L. Teaching Young Children Mathematics. Atlantic publishers, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.