APA (7th ed.) Citation

Simpson, B. J. (1988). A field guide to Texas trees. Texas Monthly Press.

Chicago Style (17th ed.) Citation

Simpson, Benny J. A Field Guide to Texas Trees. Austin, Tex.: Texas Monthly Press, 1988.

MLA (9th ed.) Citation

Simpson, Benny J. A Field Guide to Texas Trees. Texas Monthly Press, 1988.