000 00286nam a2200121Ia 4500
008 220204s9999 xx 000 0 und d
082 _a003
_bBAB
100 _aBabbie, E R
245 0 _aPractice of social research
250 _aEd.2
260 _aBelmont
_bWadsworth
_c1976
942 _cBK
999 _c31957
_d31957