Grosvenor, M. B. National geographic: March 1971. National Geographic Society.
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Chicago-čujuhus (17. p.)
Grosvenor, Melville Bell. National Geographic: March 1971. Washington, EUA: National Geographic Society.
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MLA-čujuhus (9. p.)
Grosvenor, Melville Bell. National Geographic: March 1971. National Geographic Society.
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Kopieren čuohpusbeavdái ii lihkostuvvan
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.