United States. Weather Bureau. (1923). Instructions for care and management of electrical sunshine recorders. U.S. GPO.
Chicago Style (17th ed.) CitationUnited States. Weather Bureau. Instructions for Care and Management of Electrical Sunshine Recorders. Washington: U.S. GPO, 1923.
MLA (9th ed.) CitationUnited States. Weather Bureau. Instructions for Care and Management of Electrical Sunshine Recorders. U.S. GPO, 1923.
Warning: These citations may not always be 100% accurate.