L.Hicks, K. (2009). Rourke's World of Science: ENCYCLOPEDIA : Volume 2- Animal Life. Rourke Publishing.
Lua i Stíl Chicago (17ú heag.)L.Hicks, Kelli. Rourke's World of Science: ENCYCLOPEDIA : Volume 2- Animal Life. Rourke Publishing, 2009.
Lua MLA (8ú heag.)L.Hicks, Kelli. Rourke's World of Science: ENCYCLOPEDIA : Volume 2- Animal Life. Rourke Publishing, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.