000 00266nam a2200121Ia 4500
100 _aLandsheere, G. De
942 _cBK
245 _aEmpiricam Research In Education
260 _aParis
_bUNESCO
_c1984
082 _a370.78
_bLal
300 _a113
546 _aEnglish
999 _c338829
_d338829
041 _aeng