APA (7th ed.) Citation

Yothers, W. W. (1919). The woolly white fly in Florida citrus groves. U.S. Dept. of Agriculture.

Chicago Style (17th ed.) Citation

Yothers, W. W. The Woolly White Fly in Florida Citrus Groves. Washington, D.C: U.S. Dept. of Agriculture, 1919.

MLA (9th ed.) Citation

Yothers, W. W. The Woolly White Fly in Florida Citrus Groves. U.S. Dept. of Agriculture, 1919.