00446nam a2200157Ia 4500001000700000003000500007005001700012008004100029020001800070100003000088245005900118260004200177300001800219504003100237600002000268292184BIBL20191106151901.0090902s2009 ag b 00010 spa d a97895078671181 aKohan, Walter Omar2Local10aSócratesbel enigma de enseñarcWalter Omar Kohan.0 aBuenos AiresbEditorial Biblosc2009. a131 pc23 cm. aBibliography : p. 129-131.10aSocrates2Local