000			00519nam a2200217Ia 4500
008			160330s9999||||xx |||||||||||||| ||und||
040			_aCentral Library-NITS
041			_aEnglish
082			_a519.52 _bCOC
100			_aCochran, William G.
245			_aSampling techniques _cby William G.Cochran
250			_a3rd ed.
260			_aNew York _bJohn _c1977
300			_axvi, 428p.
500			_aIncludes index
521			_bKnowhow
650			_aSampling
650			_aStatistics
650			_aSurveys
942			_cBK
999			_c5949 _d5949