APA (7th ed.) Citation

Cockerell, T. D. A. The Dragon—Fly genus Agrion (Calepteryx in Colorado. Wiley.

Chicago Style (17th ed.) Citation

Cockerell, T. D. A. The Dragon—Fly Genus Agrion (Calepteryx in Colorado. Wiley.

MLA (9th ed.) Citation

Cockerell, T. D. A. The Dragon—Fly Genus Agrion (Calepteryx in Colorado. Wiley.

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