TY - BOOK AU - Wadsworth,Harrison M. AU - Stephens,Kenneth S. AU - Godfrey,A.Blanton TI - Modern methods for quality control and improvement SN - 0471843261 U1 - 658.562 22 PY - 1986/// CY - New York PB - Wiley KW - Quality control KW - Statistical methods N1 - Includes bibliographies and index ER -