United States. Department of the Treasury. "Alien Contract Labor Law," in United States. Department of the Treasury. "Annual Report of the Secretary of the Treasury on the State of the Finances for the Year 1889," Annual Report of the Secretary of the Treasury on the State of the Finances (1889) : 94-95. https://fraser.stlouisfed.org/title/194/item/5535/toc/296594 , accessed on April 19, 2024.