APA (7th ed.) Citation

Hewitt, S. (2009). My digestive system. QED Publishing.

Chicago Style (17th ed.) Citation

Hewitt, Sally. My Digestive System. London: QED Publishing, 2009.

MLA (9th ed.) Citation

Hewitt, Sally. My Digestive System. QED Publishing, 2009.

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