United States. Department of the Treasury. "Bureau of Alcohol, Tobacco and Firearms," in United States. Department of the Treasury. "Annual Report of the Secretary of the Treasury on the State of the Finances, Fiscal Year 1977," Annual Report of the Secretary of the Treasury on the State of the Finances (Fiscal Year Ended September 30, 1977) : 159-170. https://fraser.stlouisfed.org/title/194/item/5620/toc/94196 , accessed on July 16, 2024.