Collins Animals Fascinating Facts. Harpercollins.
Lua i Stíl Chicago (17ú heag.)Collins Animals Fascinating Facts. Glasgow: Harpercollins.
Lua MLA (9ú heag.)Collins Animals Fascinating Facts. Harpercollins.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.