University of Southern California. School of Education

Piagetian theory and its implications for the helping professions : proceedings fourth interdisciplinary seminar, February 15, 1974, University of Southern California / conference planning and editorial committee, Gerald I. Lubin, James F. Magary, Marie K. Poulsen ; co-sponsored by University Afflilated Program, Childrens Hospital of Los Angeles and the USC School of Education.