00462nam a2200157Ia 4500020001800000082001700018100002500035245006300060260003300123300001000156650003300166650003400199650001900233650003100252700002100283  a0-394-31256-2  a300.72 ECK-;  aEckhardt, Kenneth W. 0aSocial research methods: perspective, theory, and analysis  aNew YorkbRandom Housec1977  a410p.  aSocial sciences - Philosophy  aSocial sciences - Methodology  aSocial surveys  aSocial sciences - Research  aErmann, M. David