00791nam a22003017i 4500 20141212093217.0 910916s1991 sp gr 000 0 spa c 1547-0350 (papel) eng HELLER, H.W. CLASSIC ARTICLES: A REFLECTION INTO THE FIELD OF MENTAL RETARDATION Bibliografía Discapacidad Discapacidad intelectual Literatura científica Discapacidad Documental ET AL. SPOONER, F. EDUCATION AND TRAINING IN MENTAL RETARDATION Vol. 26, no. 2 (1991), p. 202-206 10 11.1 L1 Z1 AR 19910916 R.404 Depósito (31) AR