APA-čujuhus (7. p.)
Development and change [Dev Change] NLMUID: 9878826.
Chicago-čujuhus (17. p.)
Development and Change [Dev Change] NLMUID: 9878826.
MLA-čujuhus (9. p.)
Development and Change [Dev Change] NLMUID: 9878826.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.