Toward a theory of psychological development  [Texte imprimé] / 
ed. by Sohan and Celia Modgil ; Foreword by Barbel Inhelder 
 - Windsor:  NFER Publishing Company,  1980 
 - 1 vol. (814 p.) ;  22 cm 
<br/><br/><label>Dewey Class. No.: </label>155