APA (7th ed.) Citation

Royston, A. (2009). Why do I brush my teeth. QED Publishing.

Chicago Style (17th ed.) Citation

Royston, Angela. Why Do I Brush My Teeth. London: QED Publishing, 2009.

MLA (9th ed.) Citation

Royston, Angela. Why Do I Brush My Teeth. QED Publishing, 2009.

Warning: These citations may not always be 100% accurate.