APA (7th ed.) Citation

United States. Office of Experiment Stations. (1943). Derris culture in Puerto Rico. [s.n.].

Chicago Style (17th ed.) Citation

United States. Office of Experiment Stations. Derris Culture in Puerto Rico. [Washington]: [s.n.], 1943.

MLA (9th ed.) Citation

United States. Office of Experiment Stations. Derris Culture in Puerto Rico. [s.n.], 1943.