000			00455 a2200181 4500
999			_c37243 _d38790
003			ISURa
008			160217b xxu||||| |||| 00| 0 eng d
020			_a0852261217
041			_aEnglish
082			_a519.52 _bCOC
100			_aCochran, William G. _99829
245			_aSampling techniques
250			_a3rd ed.
260			_c1977 _aNew Delhi _bWiley Eastern
300			_bill. _c23 cm. _axvi, 428 p.
650			_aMATHEMATICS _99896
942			_cLN _2ddc