APA (7th ed.) Citation

Hunt, R., & Brychta, A. (2011). The backpack: Level 3. Oxford University Press.

Chicago Style (17th ed.) Citation

Hunt, Roderick, and Alex Brychta. The Backpack: Level 3. Oxford: Oxford University Press, 2011.

MLA (9th ed.) Citation

Hunt, Roderick, and Alex Brychta. The Backpack: Level 3. Oxford University Press, 2011.