REFERENCES FOR ADDITIONAL READING
Fairfax, Virginia
Pamphlets and clippings in the business library; pamphlet printed by Journal of Electricity, San Francisco.
Kaempffert, Waldemar
Putting Uncle Sam to work. McClure's magazine Dec. 1916, p. 11.
Reinick, W. R.
Public documents as a commercial factor. Special libraries Nov. 1913, p. 175-77.
Rogers, S. L.
Value of statistics to business (census bureau). Manufacturers' record Oct. 23, 1919, p. 34-35.
Ulm, A. H.