000 00531cam a2200181 4500
001 0122693809
020 _a0122693809
035 _a(Sirsi) 0122693809
060 _aWM 300
100 1 _aFryers, Thomas.
245 0 4 _aThe epidemiology of severe intellectual impairment :
_bthe dynamics of prevalence /
_cTom Fryers.
260 _aLondon :
_bAcademic Press,
_c1984.
300 _a244 p.
596 _a4
650 0 2 _aMental retardation
_xepidemiology.
008 861022s1984 eng
942 _2NLM
_cMONOGRAPH
999 _c22583
_d22583