00274nam a2200109Ia 4500082002500000100002400025245005200049260003900101300001400140500000500154700000500159  a309.2630954bT841.MS  aTrivedi, Harshad R.  aMicrosocial studies in development and changeb  aAllahabadbChugh Publicationc1977  axi, 340p.  a  a