APA (7th ed.) Citation

Huebner, D., & Matthews, B. (2007). What to do when you grumble too much: A kid's guide to overcoming negativity. Magination Press.

Chicago Style (17th ed.) Citation

Huebner, Dawn, and Bonnie Matthews. What to Do When You Grumble Too Much: A Kid's Guide to Overcoming Negativity. Washington, D.C: Magination Press, 2007.

MLA (9th ed.) Citation

Huebner, Dawn, and Bonnie Matthews. What to Do When You Grumble Too Much: A Kid's Guide to Overcoming Negativity. Magination Press, 2007.