Baxter,Simon. (1997). Pure mathematics: The school mathematics project. Camebridge University Press.
Dyfyniad Arddull ChicagoBaxter,Simon. Pure Mathematics: The School Mathematics Project. U.K: Camebridge University Press, 1997.
Dyfyniad MLABaxter,Simon. Pure Mathematics: The School Mathematics Project. Camebridge University Press, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.