000 00506nam a2200181Ia 4500
999 _c67773
_d67773
005 20221021111205.0
008 180710s9999 xx 000 0 und d
020 _a87968
041 _aEN
082 _a616.8588
_bINT
_223
245 _aINTERNATIONAL review of research in mental retardation
_c/edited by Norman R. Ellis
260 _aLondon
_bAcademic press
_c1970
300 _axv, 392 p.
500 _aIncludes index.
650 _aMental retardation
700 _bEllis, Norman R., ed.
942 _cS