APA (7th ed.) Citation

Lore, P. (2010). I am number four. penguin books.

Chicago Style (17th ed.) Citation

Lore, Pittacus. I Am Number Four. United states: penguin books, 2010.

MLA (9th ed.) Citation

Lore, Pittacus. I Am Number Four. penguin books, 2010.

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