Hallahan, Daniel P. <br/><br/>
Some thoughts on why the prevalence of learning disabilities has increased 

 - 523-528 
 - 25, No. 8, 1992 
<br/><br/>Abril 1993 
 = JOURNAL OF LEARNING DISABILITIES 
<br/><br/><label>Encabezamiento--Término de Indización: </label>CAMBIO SOCIAL DIAGNOSTICO EDUCATIVO DISCIPLINA INTELECTUAL FRECUENCIA PROBLEMAS DE APRENDIZAJE