I am the retird professor in psychology of Leiden University Dolph Kohnstamm.
Esearchgate is sending my Routledgebook Piaget: Chilfren and the class inclusion problem toANYONE IN THE WORLD WHO ASKS for it. Now,in return for that,I askredearchgate to send me all the chapters of the Routledgebook on Phenomenology.
Sincerely Yours. Prof. Em. Dolph Kohnstamm, Amsterdam