Markle Sandra. (2004). Animal Predators Crocodile. Lerner.
Lua i Stíl Chicago (17ú heag.)Markle Sandra. Animal Predators Crocodile. Lerner, 2004.
Lua MLA (9ú heag.)Markle Sandra. Animal Predators Crocodile. Lerner, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.