000			00381nam a2200157Ia 4500
008			230917s9999||||xx |||||||||||||| ||und||
040			_e70814 _aMAIN
041			_aEnglish
082			_a519.52 C643S
100			_aCochran, willian, G
245		0	_aSampling techniques
250			_a3rd ed.
260			_aNew Delhi _bWiley Eastern _c1992
300			_axvi, 428 p.
942			_cBK
999			_c232636 _d232636