APA (7th ed.) Citation

Willoughby, L., & May, J. C. (2003). Texas! Holt, Rinehart and Winston.

Chicago Style (17th ed.) Citation

Willoughby, Larry, and Janice C. May. Texas! Austin, Tex.: Holt, Rinehart and Winston, 2003.

MLA (8th ed.) Citation

Willoughby, Larry, and Janice C. May. Texas! Holt, Rinehart and Winston, 2003.