references

Please add references below, which have good references to the proposal. [1]David O. woodbury, "A Measure for Greatness", McGRAW-HILL Comp. (1949) [2]John H Miller,"Weston Technucal Monograph", (Weston Co.),1977) [3]Eiju MATSUOT,"Edward Weston Made His Mark on the History of Instrumentation",IEEE Instrumentation Magazine,(2003)

Eijuma16:44, 15 February 2014