000 00293nam a2200121Ia 4500
008 190415s9999 xx 000 0 und d
082 _aRM.0120
100 _aMaan, S.S.
245 0 _aStudy of socio-economic background of student population
260 _c1986
300 _a59p.
942 _cBK
999 _c21475
_d21475