00906nam a22002897i 450000500170000000800410001704100080005810000190006624501150008565000120020065000290021265000480024165000170028965000290030665000250033565000230036065000360038365000280041965300170044765500150046470000110047977300830049099600090057399800070058293900130058995200140060220161209113857.0990212s1999    sp     gr     000 0 spa c  aeng1 aSCHWARTZ, I.S.10aTHE PICTURE EXCHANGE COMMUNICATION SYSTEM ( PECS): COMMUNICATIVE OUTCOMES FOR YOUNG CHILDREN WITH DISABILITIES14aAutismo14aComunicación no verbal14aActividades artísticas y socio culturales14aDiscapacidad14aDiscapacidad intelectual14aEducación infantil14aMétodo educativo14aTrastornos del espectro autista14aTrastornos del lenguaje10aDiscapacidad 4aDocumental1 aET AL.0 tTOPICS IN EARLY CHILDHOOD SPECIAL EDUCATIONgVol. 18, no. 3 (1998), p. 144-15910a11.3  aAR  a19990212  oR.545yAR