APA-čujuhus (7. p.)
TECHNOLOGY in western civilization.
Chicago-čujuhus (17. p.)
TECHNOLOGY in Western Civilization.
MLA-čujuhus (9. p.)
TECHNOLOGY in Western Civilization.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.