APA (7th ed.) Citation

Williston, S. W. The Screw-Worm Fly, Compsomyia Macellaria. Wiley.

Chicago Style (17th ed.) Citation

Williston, Samuel Wendell. The Screw-Worm Fly, Compsomyia Macellaria. Wiley.

MLA (9th ed.) Citation

Williston, Samuel Wendell. The Screw-Worm Fly, Compsomyia Macellaria. Wiley.

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