000 00250nam a22001094a 4500
082 _a300.18 BLA
100 _aBlalock, Hubert
245 1 _aMethodology in Social Research
260 _aLondon:
_bMcGraw-Hill ,
_c1971
300 _a493p.:
942 _cBK
999 _c522693
_d522693