Lewko Tim. (2017). Making Big Decisions Better. Routledge.
Chicago-čujuhus (17. p.)Lewko Tim. Making Big Decisions Better. Routledge, 2017.
MLA-čujuhus (9. p.)Lewko Tim. Making Big Decisions Better. Routledge, 2017.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.