000 00349nam a2200133Ia 4500
008 211215s9999 xx 000 0 und d
040 _cJayakar Knowledge Resource Centre
100 _aHusen, T
245 0 _aDifferentiation and guidance
260 _bALMQVIST & WIKSELL
_aSTOCKHOLM
_c1959
300 _a194 p p.
653 _aEDUCATION
942 _c1
999 _c65516
_d65516