000 00329nam a2200121Ia 4500
008 211228s9999 xx 000 0 und d
040 _cJayakar Knowledge Resource Centre
100 _aDe Vaus, D A
245 0 _aSurveys in social research
260 _bGeorge Allen & Unwin
_aLondon
_c1986
300 _axii,254p p.
942 _c1
999 _c247284
_d247284