000			00380nam a2200157Ia 4500
008			230917s9999||||xx |||||||||||||| ||und||
040			_e86691 _aMAIN
041			_aEnglish
082			_a519.52 C643S
100			_aCochran, William G
245		0	_aSampling techniques
250			_a2nd ed.
260			_aNew Delhi _bWiley Eastern _c1977
300			_avii, 413 p.
942			_cBK
999			_c209026 _d209026