000			00323nam a2200133Ia 4500
008			140317s9999 xx 000 0 und d
082			_a519.52
100			_aSingh,D and others.
245			_aHandbook on sampling methods.
260			_aDelhi _bIASRO _c1979
300			_a167
653			_aSampling methods
942			_2ddc _cBK
999			_c9037 _d9037