000 00328nam a2200121Ia 4500
001 87015
008 170722s9999 xx 000 0 und d
100 _aGlass, Dv
245 _aUniversity teaching of social sciences
_bDemography /
260 _c1957.
490 _aUnesco series in teaching in the social sciences
942 _cGEN
999 _c61005
_d61005