1. Walter Andrew Shewhart
2. Walter A. Shewhart, 1891‐1967;Deming W. E.;Rev. Internat. Statist. Inst,1968
3. Biography: Shewhart, Walter A. (1891‐1967);Deming W. E.;International Encyclopedia of Statistics,1978
4. The Economic Design of | barX Charts used to Maintain Current Control of a Process