APA (7th ed.) Citation

Jeff Kinney. (2007). Diary of a wimpy kid: The last straw. Puffin books.

Chicago Style (17th ed.) Citation

Jeff Kinney. Diary of a Wimpy Kid: The Last Straw. N.Y: Puffin books, 2007.

MLA (9th ed.) Citation

Jeff Kinney. Diary of a Wimpy Kid: The Last Straw. Puffin books, 2007.

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