APA (7th ed.) Citation

United States. Office of Experiment Stations. (1920). Statistics of cooperative extension work, 1919-20. GPO.

Chicago Style (17th ed.) Citation

United States. Office of Experiment Stations. Statistics of Cooperative Extension Work, 1919-20. [Washington]: GPO, 1920.

MLA (9th ed.) Citation

United States. Office of Experiment Stations. Statistics of Cooperative Extension Work, 1919-20. GPO, 1920.

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