United States. Department of the Treasury. (1903). [Signal letters for display by Revenue-Cutter ships, with list of ships and corresponding signal letters]. DC.
Chicago Style (17th ed.) CitationUnited States. Department of the Treasury. [Signal Letters for Display by Revenue-Cutter Ships, with List of Ships and Corresponding Signal Letters]. [Washington]: DC, 1903.
MLA (9th ed.) CitationUnited States. Department of the Treasury. [Signal Letters for Display by Revenue-Cutter Ships, with List of Ships and Corresponding Signal Letters]. DC, 1903.
Warning: These citations may not always be 100% accurate.