000 00376cam a22001097a 4500
008 180718b1973 xxu||||| |||| 00| 0 eng d
082 _aQ618 Un3
245 _aPresent situation and trends of research in the fild of special education
_cby UNESCO
260 _a
_bUnited Nations Educational, Scientific And Cultural organization
_c1973
300 _a306p.
700 _aFrance.UNESCO
999 _c495573
_d495573