Greenes, C. E. (1972). Problem solving in the mathematics laboratory: How to do it. Prindle, Weber and Schmidt, Inc.
Dyfyniad Arddull ChicagoGreenes, Carole E. Problem Solving in the Mathematics Laboratory: How to Do It. Boston, Massachusetts: Prindle, Weber and Schmidt, Inc, 1972.
Dyfyniad MLAGreenes, Carole E. Problem Solving in the Mathematics Laboratory: How to Do It. Prindle, Weber and Schmidt, Inc, 1972.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.