APA (7th ed.) Citation

Gee, H., & Rey, L. V. (2003). A field guide to dinosaurs. Barron's.

Chicago Style (17th ed.) Citation

Gee, Henry, and Luis V. Rey. A Field Guide to Dinosaurs. Hauppauge, N.Y.: Barron's, 2003.

MLA (8th ed.) Citation

Gee, Henry, and Luis V. Rey. A Field Guide to Dinosaurs. Barron's, 2003.