Jan Brett. (2003). The Hat Board Book.
Lua i Stíl Chicago (17ú heag.)Jan Brett. The Hat Board Book. Penguin Putnam Inc, 2003.
Lua MLA (8ú heag.)Jan Brett. The Hat Board Book. 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.