00653nam a22002297a 4500003000500000005001700005008004100022010000900063011000900072035000900081040000900090082001600099100002900115245005100144260002900195300001000224490006000234500001100294650002800305650003000333830006000363CHAP20220329133049.0971013s1983            r     00010     d  a1752  a2724  a1920  cCHAP  a519.92bC6100aCochran, William Gemmel.  aPlanning and analysis of observational studies  aNew York :bWiley,c1983  a145 p  aWiley series in probability and mathematical statistics  aD43-2614aAnálisis de varianza.14aDiseños experimentales.0 aWiley series in probability and mathematical statistics