00892nam--2200337---450-99000172201020331620051004090332.0000172201USA01000172201(ALEPH)000172201USA0100017220120040603d1959----km-y0itay0103----baitaIT||||||||001yyGeorg KerschensteinerMauro LaengBresciaLa Scuola1959205 p.19 cm.20012001001-------2001LAENG,Mauro33977ITsalbcISBD990001722010203316II.4. 2518(VI C 728)18490 L.M.VI CBKUMASIAV81020040603USA011118COPAT69020051004USA010903Georg Kerschensteiner219345UNISA