00403nam a2200109Ia 4500008004100000082002100041100002000062245005100082260003300133300003100166490009600197250508b        |||||||| |||| 00| 0 eng d  a658.568bR989.SM  aRyen, Thomas P.  aStatistical methods for quality improvementb/  aNew York:bJohn Wiley,c1989  axviii, 446p. Index, Tables  aWiley series in Probability and Mathematical Statistics. Applied Probability and Statistics