Kinney, J. (2009). Diary of a Wimpy Kid #4: Dog Days. Amulet Books.
Lua i Stíl Chicago (17ú heag.)Kinney, Jeff. Diary of a Wimpy Kid #4: Dog Days. New York: Amulet Books, 2009.
Lua MLA (8ú heag.)Kinney, Jeff. Diary of a Wimpy Kid #4: Dog Days. Amulet Books, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.