(1988). The World book encyclopedia. World book.
Chicago-čujuhus (17. p.)The World Book Encyclopedia. Chicago: World book, 1988.
MLA-čujuhus (9. p.)The World Book Encyclopedia. World book, 1988.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.