01067nam--2200361---450-99000146356020331620051005163610.0000146356USA01000146356(ALEPH)000146356USA0100014635620040301d1976----km-y0itay0103----baengGB||||||||001yyEducational research in classrooms and schoolsa manual of materiales and methodsLouis CohenLondon [etc.]Harper Row1976XVI, 425 p.27 cm.20012001001-------2001PedagogiaCOHEN,Louis332210ITsalbcISBD990001463560203316II.4. 2830(VI C 2431)73761 L.M.VI CBKUMASIAV81020040301USA011120PATRY9020040406USA011742COPAT19020051005USA011636Educational research in classrooms and schools936677UNISA