Wadsworth, Harrison M. , Modern methods for quality control and improvement / Harrison M. Wadsworth, Kenneth S. Stephens, A. Blanton Godfrey. - 2nd ed. - xiii,683p. : illustrations ; 24 cm. ISBN: 0471299731 Subjects--Topical Terms: Quality control.Quality control --Statistical methods. LC Class. No.: TS 156 / .W32 2002