United States. Bureau of Labor Statistics. "California, Georgia, and New Jersey—Injunctions Against Picketing," in United States. Bureau of Labor Statistics. "December 1921, Volume XIII, Number 6," Monthly Labor Review (December 1921) : 165-166. https://fraser.stlouisfed.org/title/6130/item/608053/toc/596023 , accessed on May 19, 2024.