APA (7th ed.) Citation

United States. Office of Cooperative Extension Work & Warburton, C. W. (1928). Public attitude toward extension work. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Office of Cooperative Extension Work and Charles W. Warburton. Public Attitude Toward Extension Work. Washington: [publisher not identified], 1928.

MLA (9th ed.) Citation

United States. Office of Cooperative Extension Work and Charles W. Warburton. Public Attitude Toward Extension Work. [publisher not identified], 1928.