American Association of Public Employment Offices and United States. Bureau of Labor Statistics. "Proceedings of the American Association of Public Employment Offices, Annual Meetings: First—Chicago, Dec. 19 and 20, 1913. Second—Indianapolis, Sept. 24 and 25, 1914. Third—Detroit, July 1 and 2, 1915 : Bulletin of the United States Bureau of Labor Statistics, No. 192," Proceedings of the American Association of Public Employment Offices (May 1916). https://fraser.stlouisfed.org/title/3910/item/476863, accessed on September 18, 2024.