00341nam a2200109Ia 4500008004100000040003800041100004800079245004800127260002400175300001200199653002000211211215s9999    xx            000 0 und d  cJayakar Knowledge Resource Centre  aHandbook For Social Research In Urban Areas 0aHandbook for social research in urban areas  bUnescoaParisc1965  a214p p.  aSocial research