APA (7th ed.) Citation

United States. Extension Service. (1985). Agricultural chartbook. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Extension Service. Agricultural Chartbook. [Washington, D.C.?] : U.S. Dept. of Agriculture, Extension Service: [publisher not identified], 1985.

MLA (9th ed.) Citation

United States. Extension Service. Agricultural Chartbook. [publisher not identified], 1985.