American Association of Public Employment Offices and United States. Bureau of Labor Statistics. "Proceedings of the Fourth Annual Meeting of the American Association of Public Employment Offices, Buffalo, N.Y., July 20 and 21, 1916 : Bulletin of the United States Bureau of Labor Statistics, No. 220," Proceedings of the American Association of Public Employment Offices (July 1917). https://fraser.stlouisfed.org/title/3910/item/476864, accessed on September 10, 2024.