Illuminating Engineering Society
, American Institute of Architects
, American Engineering Standards Committee
and United States. Bureau of Labor Statistics.
Code of Lighting School Buildings : Bulletin of the United States Bureau of Labor Statistics, No. 382 ,
Washington, D.C:
G.P.O.,
February 1925, https://fraser.stlouisfed.org/title/4010,
accessed on September 11, 2024.