APA-čujuhus (7. p.)
National Geographic Society. Enciclopedia de los Animales National Geographic. National Geographic Society.
Chicago-čujuhus (17. p.)
National Geographic Society. Enciclopedia De Los Animales National Geographic. National Geographic Society.
MLA-čujuhus (9. p.)
National Geographic Society. Enciclopedia De Los Animales National Geographic. National Geographic Society.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.