APA (7th ed.) Citation

United States. Office of Cooperative Extension Work. (1927). Developments in Negro extension work. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Office of Cooperative Extension Work. Developments in Negro Extension Work. Washington: [publisher not identified], 1927.

MLA (9th ed.) Citation

United States. Office of Cooperative Extension Work. Developments in Negro Extension Work. [publisher not identified], 1927.