Equilibrium in the Balance. A Study of Psychological Explanation.
New York, [etc]: Springer - Verlag, 1983. First edition Octavo. 157pp. Printed paper hardcover boards. Mild rubbing and wear, else a decent VG+ copy. This volume is a important contribution to the study of cognitive development. It includes chapers on Piaget's Equilibration Account, the biological model, Piaget's use of the Phenocopy Principle to explain cognitive change, etc. One of the Springer Series in Cognitive Development. Hardcover (Item ID: 3203)