Syd Hoff. (1997). "Happy Birthday, Danny and the Dinosaur! (I Can Read Level 1)" (Reprint.). HarperCollins.
Lua i Stíl Chicago (17ú heag.)Syd Hoff. "Happy Birthday, Danny and the Dinosaur! (I Can Read Level 1)". Reprint. HarperCollins, 1997.
Lua MLA (9ú heag.)Syd Hoff. "Happy Birthday, Danny and the Dinosaur! (I Can Read Level 1)". Reprint. HarperCollins, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.