United States. Bureau of Labor Statistics. "Employment Status of Philadelphia Public-School Graduates of 1935," in United States. Bureau of Labor Statistics. "February 1938, Vol. 46, No. 2," Monthly Labor Review (February 1938) : 97-99. https://fraser.stlouisfed.org/title/6130/item/608292/toc/613158 , accessed on May 1, 2024.