APA (7th ed.) Citation

Huebner, D., & Matthews, B. (2006). What to do when you worry too much. Magination Press.

Chicago Style (17th ed.) Citation

Huebner, Dawn, and Bonnie Matthews. What to Do When You Worry Too Much. Washington D.C.: Magination Press, 2006.

MLA (9th ed.) Citation

Huebner, Dawn, and Bonnie Matthews. What to Do When You Worry Too Much. Magination Press, 2006.