APA (7th ed.) Citation

Howard, L. O. (1926). The house fly and how to suppress it. U.S. Dept. of Agriculture.

Chicago Style (17th ed.) Citation

Howard, L. O. The House Fly and How to Suppress It. Washington, D.C.: U.S. Dept. of Agriculture, 1926.

MLA (9th ed.) Citation

Howard, L. O. The House Fly and How to Suppress It. U.S. Dept. of Agriculture, 1926.