000 00340nam a2200133Ia 4500
100 _aUNESCO
020 _a92-3-101106-3
654 _aEducation, Special
942 _cBK
245 _aThe Present situation and trends of research in the field of special education
260 _aUnesco, Paris
_cc1973
082 _a371.9 UNES
300 _a306p
999 _c4390
_d4390