APA (7th ed.) Citation

Tveten, J. L., & Tveten, G. A. (2008). Nature at your doorstep: A nature trails book. Texas A&M University Press.

Chicago Style (17th ed.) Citation

Tveten, John L., and Gloria A. Tveten. Nature at Your Doorstep: A Nature Trails Book. College Station: Texas A&M University Press, 2008.

MLA (9th ed.) Citation

Tveten, John L., and Gloria A. Tveten. Nature at Your Doorstep: A Nature Trails Book. Texas A&M University Press, 2008.