Ernst, C. H. (1989). Turtles of the world. Smithsonian Institution.
Lua i Stíl Chicago (17ú heag.)Ernst, Carl H. Turtles of the World. Smithsonian Institution, 1989.
Lua MLA (8ú heag.)Ernst, Carl H. Turtles of the World. Smithsonian Institution, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.