Alaska Oil & Gas Reporter (Anchorage, AK).
Chicago-čujuhus (17. p.)Alaska Oil & Gas Reporter (Anchorage, AK).
MLA-čujuhus (9. p.)Alaska Oil & Gas Reporter (Anchorage, AK).
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.