United States. Weather Bureau. (1938). Climatological data for the United States by section. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Weather Bureau. Climatological Data for the United States by Section. [Washington]: [s.n.], 1938.
MLA (9th ed.) CitationUnited States. Weather Bureau. Climatological Data for the United States by Section. [s.n.], 1938.
Warning: These citations may not always be 100% accurate.