Forbes, J. E., & Eicholz, R. E. (1971). Mathematics for elementary teachers. Addison-Wesley Pub. Co.
Dyfyniad Arddull ChicagoForbes, Jack E., and Robert E. Eicholz. Mathematics for Elementary Teachers. Reading, Mass: Addison-Wesley Pub. Co, 1971.
Dyfyniad MLAForbes, Jack E., and Robert E. Eicholz. Mathematics for Elementary Teachers. Addison-Wesley Pub. Co, 1971.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.