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Freeman, Harold Adolph: Industrial statistics; statistical technique applied to problems in industrial research and quality control. [by] H.A. Freeman ... (J. Wiley & sons, inc., 1942) (page images at HathiTrust) Freeman, Harold Adolph: Sampling inspection : principles, procedures, and tables for single, double and sequential sampling in acceptance inspection and quality control based on percent defective (McGraw-Hill, 1948), also by Columbia University. Statistical Research Group and United States. Office of Scientific Research and Development. National Defense Research Committee (page images at HathiTrust)