American Engineering Standards Committee , International Association of Industrial Accident Boards and Commissions and National Safety Council. Safety Code for Rubber Mills and Calenders : Recommended American Practice, Approved March, 1927, American Engineering Standards Committee : Bulletin of the United States Bureau of Labor Statistics, No. 447 , Washington, D.C: G.P.O., June 1927, https://fraser.stlouisfed.org/title/4044, accessed on October 6, 2024.