APA (7th ed.) Citation

United States. Weather Bureau. (1935). Instructions for cooperative [meteorological] observers. [s.n.].

Chicago Style (17th ed.) Citation

United States. Weather Bureau. Instructions for Cooperative [meteorological] Observers. [Washington]: [s.n.], 1935.

MLA (9th ed.) Citation

United States. Weather Bureau. Instructions for Cooperative [meteorological] Observers. [s.n.], 1935.

Warning: These citations may not always be 100% accurate.