Wakefield, J. F. (1996). Educational psychology: Learning to be a problem solver. Boston: Houghton Mifflin.
Dyfyniad Arddull ChicagoWakefield, John F. Educational Psychology: Learning to Be a Problem Solver. Boston: Houghton Mifflin, 1996.
Dyfyniad MLAWakefield, John F. Educational Psychology: Learning to Be a Problem Solver. Boston: Houghton Mifflin, 1996.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.