HARD-TO-SURVEY populations. Cambridge University press.
Chicago-čujuhus (17. p.)HARD-TO-SURVEY Populations. Cambridge University press.
MLA-čujuhus (9. p.)HARD-TO-SURVEY Populations. Cambridge University press.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.