Publicado por John Wiley & Sons, 1967
Librería: Mythos Center Books, Frontenac, MN, Estados Unidos de America
Original o primera edición
Hardcover. Condición: Used: Very Good. 1st ed. Very good, DJ sl. Torn, 539pp.
Publicado por John Wiley & Sons, New York, 1967
Librería: Persephone's Books, Gastonia, NC, Estados Unidos de America
Cloth. Condición: Fine. Estado de la sobrecubierta: Near Very Good. xii, 539 pp. The jacket is faded at the spine, and slightly scuffed and chipped along the upper and lower edges. ".[C]oncerned with the most imaginative and creative ideas and programs in the application of ego processes to education.".