Statistical quality control / Eugene L. Grant, Richard S. Leavenworth. Grant, Eugene Lodewick, 1897- Leavenworth, Richard S., joint author. Quality control Statistical methods. TS156 .G7 1980 311 GRS Includes indexes. Bibliography: p. 621-626. New York : McGraw-Hill, c1980. c1980. 1980 Text xiv, 684 p. : eng