00294nam a2200121Ia 4500008004100000040001700041041001200058082001700070100001900087245003100106260002400137300001100161230917s9999||||xx |||||||||||||| ||und||  e110529aMAIN  aEnglish  a301.072 D25D  aDas, D. K. Lal 0aDesigns of social research  aJaipurbRawatc2005  a318 p.