United States. Weather Bureau. (1912). Forecasting frost in North Pacific States. GPO.
Chicago Style (17th ed.) CitationUnited States. Weather Bureau. Forecasting Frost in North Pacific States. [Washington]: GPO, 1912.
MLA (9th ed.) CitationUnited States. Weather Bureau. Forecasting Frost in North Pacific States. GPO, 1912.
Warning: These citations may not always be 100% accurate.