United States. Weather Bureau. (1921). Daily river stages at river gage stations on principal rivers of U.S: Volume XIX, for year 1921. GPO.
Chicago Style (17th ed.) CitationUnited States. Weather Bureau. Daily River Stages at River Gage Stations on Principal Rivers of U.S: Volume XIX, for Year 1921. [Washington]: GPO, 1921.
MLA (9th ed.) CitationUnited States. Weather Bureau. Daily River Stages at River Gage Stations on Principal Rivers of U.S: Volume XIX, for Year 1921. GPO, 1921.
Warning: These citations may not always be 100% accurate.