APA (7th ed.) Citation

Mull, B. (2010). Keys to the demon prison: Fablehaven series, book 5.

Chicago Style (17th ed.) Citation

Mull, Brandon. Keys to the Demon Prison: Fablehaven Series, Book 5. 2010.

MLA (8th ed.) Citation

Mull, Brandon. Keys to the Demon Prison: Fablehaven Series, Book 5. 2010.

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