APA Style

Kinney, Jeff. (2009). Diary Of A Wimpy Kid Book 4: Dog Days . New York: Amulet Books.

Chicago Style

Kinney, Jeff. Diary Of A Wimpy Kid Book 4: Dog Days. New York: Amulet Books, 2009. Text.

MLA Style

Kinney, Jeff. Diary Of A Wimpy Kid Book 4: Dog Days. New York: Amulet Books, 2009. Text.

Turabian Style

Kinney, Jeff. Diary Of A Wimpy Kid Book 4: Dog Days. New York: Amulet Books, 2009. Print.