APA-čujuhus (7. p.)
Grosvenor, M. B. National Geographic: Vol. 136, no. 4, October 1969. National Geographic Society.
Chicago-čujuhus (17. p.)
Grosvenor, Melville Bell. National Geographic: Vol. 136, No. 4, October 1969. Washington, EUA: National Geographic Society.
MLA-čujuhus (9. p.)
Grosvenor, Melville Bell. National Geographic: Vol. 136, No. 4, October 1969. National Geographic Society.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.