00588nam a22001937i 450000500170000000800410001704100080005810000180006624500540008465000260013865000130016465000230017765000260020065000380022665000290026465500150029370000190030877300670032720141212093021.0890615s1989    sp     gr     000 0 spa c  aeng1 aCUMMINS, G.J.10aBULLETIN BOARD LEARNING CENTER MAKES SPELLING FUN14aEnfermedades mentales14aLenguaje14aMétodo educativo14aMaterial pedagógico14aNecesidades educativas especiales14aProblemas de aprendizaje 4aDocumental1 aLOMBARDI, T.P.0 tTEACHING EXCEPTIONAL CHILDRENgVol. 21, no. 2 (1989), p. 33-35