00371nam a22001577a 4500003000400000008004100004020001400045082001700059100002300076245002500099250000800124260003900132300001300171942001200184999001700196OSt250829b        |||||||| |||| 00| 0 eng d  a471162043  a519.57bC66E  aWilliam G. Cochran  aExperimental Designs  a2nd  aNew YorkbJohn Willey & Sonsc1950  axiv,611p  2ddccDB  c48850d48850