United States. Weather Bureau. (1917). Radiographic weather code for vessel weather observers. U.S. GPO.
Chicago Style (17th ed.) CitationUnited States. Weather Bureau. Radiographic Weather Code for Vessel Weather Observers. Washington: U.S. GPO, 1917.
MLA (9th ed.) CitationUnited States. Weather Bureau. Radiographic Weather Code for Vessel Weather Observers. U.S. GPO, 1917.
Warning: These citations may not always be 100% accurate.