APA (7th ed.) Citation

United States. Department of Agriculture. (1990). Directory, careers: USDA. [Dept. of Agriculture].

Chicago Style (17th ed.) Citation

United States. Department of Agriculture. Directory, Careers: USDA. [Washington, D.C.?]: [Dept. of Agriculture], 1990.

MLA (9th ed.) Citation

United States. Department of Agriculture. Directory, Careers: USDA. [Dept. of Agriculture], 1990.

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