00525nam a2200169Ia 450000100070000000500170000700800410002402000150006504000100008010000270009024500760011725000110019326000410020430000250024550400540027065000310032428552120200312135334.0051129s2007 ag a frb spa d a9505075111 aPUCPR1 aMuller, Marina.2Local10aDocentes tutoresborientación educativa y tutoríacMarina Müller. a6. ed. aBuenos AiresbEditorial Bonumc2007. a287 p.bill.c23 cm. aIncludes bibliographical references (p. 277-283). 2aTutors and tutoring2Local