000 00530nam a2200241Ia 4500
001 006559
008 141222s9999 xx 000 0 und d
040 _aDB/INS
041 0 _aspa
084 _aWS107
084 _bT71r
100 1 _aTredgold, R.F
245 1 0 _aRetardo mental
245 1 0 _cR.F Tredgold, K Soddy
250 _a11° ed
260 _aBuenos Aires
260 _bEditorial Medica Panamericana
260 _c1974
300 _a479
300 _bilus.
650 1 _aRetardo mental
700 1 _aSoddy, K
999 _c15982
_d15982