Board of Governors of the Federal Reserve System (U.S.), 1935-
and Federal Reserve Board, 1914-1935. Interpretation of Law or Regulation: Classification "Room-unit Air Conditioners" Includes Portable Units of One Horsepower or Less, Number S-370, Volume 55, Page 338,
Mimeograph Letters and Statements of the Board.
Board of Governors of the Federal Reserve System (U.S.), 1935-.
https://fraser.stlouisfed.org/archival/4957/item/509665, accessed on October 8, 2026.