APA (7th ed.) Citation

United States. Department of Agriculture. (1990). Science and technology. U.S. Dept. of Agriculture.

Chicago Style (17th ed.) Citation

United States. Department of Agriculture. Science and Technology. [Washington, D.C.?]: U.S. Dept. of Agriculture, 1990.

MLA (9th ed.) Citation

United States. Department of Agriculture. Science and Technology. U.S. Dept. of Agriculture, 1990.