00739nam a22002657i 4500 20141212085904.0 870901s1987 sp gr 000 0 spa c eng MATTISON, R.E. AN OBJECTIVE EVALUATION OF SPECIAL CLASS PLACEMENT OF ELEMENTARY SCHOOLBOYS WITH BEHAVIOR PROBLEMS Conducta Educación especial Necesidades educativas especiales Psicología Trastornos psicológicos Documental JOURNAL OF ABNORMAL CHILD PSYCHOLOGY Vol. 14, no. 2 (1986), p. 251-262 31 74 C1 M1b AR 19870901 R.464 Depósito (40) AR