Palmer, Gladys L. (Gladys Louise)
and Stoflet, Ada M. (Ada Margaret), 1909-1976.
The Labor Force of the Philadelphia Radio Industry in 1936, Report No. P-2 ,
Philadelphia, Pennsylvania:
Works Progress Administration, National Research Project,
April 1938, https://fraser.stlouisfed.org/title/6649,
accessed on October 12, 2024.