00331nam a2200109Ia 4500082001600000100003300016245005100049260004100100300001500141650003100156650003400187  a301.1 BAY-;  aBayle, Jean Louis Loubet del 0aIntroduction to the methods of social sciences  aNew DelhibSterling Publishersc1988  axiv, 264p.  aSocial sciences - Research  aSocial sciences - Methodology