00371nam a2200145 a 450000500170000002000150001708200170003210000210004924500250007025000120009526000410010730000250014849000340017370000180020720251203110742.0  a9971513110  a001.434bCOC  aCochran, William  aExperimental Designs  a2nd ed.  aSingaporebJohn Wiley & Sons.,c2003  axiv,611p.c26 cm. PB  aWiley Classics Library series  aCox, Gertrude