[E1903BO1], Interview, Thomas Alva Edison, July 1919
General economic and business conditions
Efficiency, scientific management, management theory
Cement houses and other concrete structures
[E1903-F] Edison General File Series -- 1919
https://edisondigital.rutgers.edu/document/E1903BO1
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
Archive.org Viewer, Microfilm Series Reel 271