00266nam a2200097Ia 4500008004100000082001200041100002100053245004400074264004000118300001000158200527s9999||||xx |||||||||||||| ||und||  a155 FLA  aFlavell, John H. 0aDevelopmental Psychology of Jean Piaget  bVan Nostrand Reinhold Companyc1963  a472p.