Jeff Kinney. (2017). DIARY OF A WIMPY KID Double Down (2017.). Puffin Books.
Lua i Stíl Chicago (17ú heag.)Jeff Kinney. DIARY OF A WIMPY KID Double Down. 2017. Puffin Books, 2017.
Lua MLA (9ú heag.)Jeff Kinney. DIARY OF A WIMPY KID Double Down. 2017. Puffin Books, 2017.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.