00333nam a2200121Ia 4500008004100000040001600041041001200057082001700069100001800086245006000104260003000164300001700194230917s9999||||xx |||||||||||||| ||und||  e65527aMAIN  aEnglish  a301.018 N86M  aNowak, Stefan 0aMenthodology of sociological research: general problems  aDordrechtbD Reidelc1971  axvii, 504 p.