National Geographic Society. (1960). Wild animals of North America. National Geographic Society.
Chicago-čujuhus (17. p.)National Geographic Society. Wild Animals of North America. Washington: National Geographic Society, 1960.
MLA-čujuhus (9. p.)National Geographic Society. Wild Animals of North America. National Geographic Society, 1960.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.