00325nam a22001337a 4500008004100000020001500041041001400056100001400070245003500084250000900119260002900128300001900157700001500176260324b        |||||||| |||| 00| 0 eng d  a8449408121  aEspañol  aH. Wallon  aCiencias humanas dialécticas  aEd/1  aMéxicobGrijalboc1969  a153p. :c18cm.  aM. Prenant