000 00388nam a2200145Ia 4500
008 211214s9999 xx 000 0 und d
040 _cJayakar Knowledge Resource Centre
100 _aBurt, Cyril
245 0 _aCauses and treatment of backwardness
250 _a2
260 _bUniversity of London Press Ltd.
_aLondon
_c1953
300 _a128p p.
653 _aPSYCHOLOGY
942 _c1
999 _c33805
_d33805