APA (7th ed.) Citation

United States. Office of Cooperative Extension Work. (1928). Report of European trip. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Office of Cooperative Extension Work. Report of European Trip. Washington: [publisher not identified], 1928.

MLA (9th ed.) Citation

United States. Office of Cooperative Extension Work. Report of European Trip. [publisher not identified], 1928.

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