00673nam a22002057a 4500003000400000005001700004008004100021020001500062040000800077082002100085100003000106245004800136250001000184260004200194300001100236650006500247942001200312999001500324952012800339OSt20160217140550.0030206s2002    ck            000 0 spa d  a047116240X  cOSt04221a519.52bC634  aCochran, William G.9646100aSampling techniques / cCochran, William G.  a3 ed.  aNew York: bJohn Wiley & Sons,c1977.  a428 p.042LEMBxMUESTREO (ESTADÍSTICA) / I SAMPLE (STATISTICS)96391  2ddccBK  c5043d5043  00102ddc3USAP40708GRALauspsbuspscGENd2016-02-17l0o519.52 C634p07405r2016-02-17 00:00:00tEj. 1w2016-02-17yBK