00307nam a2200121Ia 4500008004100000041000800041082001400049100001900063245002800082250000800110260005400118300001300172231228s1997    xx            000 0 und d  aeng  a1.42bDOO  aDOOLEY (David)  aSocial Research Methods  a3rd  aNew DelhibPrentice Hall of India New Delhic1997  axii, 387