Arlon Penelope. First animal encyclopedia. DK.
Lua i Stíl Chicago (17ú heag.)Arlon Penelope. First Animal Encyclopedia. London: DK.
Lua MLA (9ú heag.)Arlon Penelope. First Animal Encyclopedia. DK.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.