Isadora, R. (2009). Happy belly, happy smile. Harcourt Children's Books.
Lua i Stíl Chicago (17ú heag.)Isadora, Rachel. Happy Belly, Happy Smile. Boston: Harcourt Children's Books, 2009.
Lua MLA (8ú heag.)Isadora, Rachel. Happy Belly, Happy Smile. Harcourt Children's Books, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.