Dellar, H., & Walkley, A. (2017). Outcomes. Advanced class DVD-ROM. National Gaographic Learning Cengage Learning.
Chicago-čujuhus (17. p.)Dellar, Hugh, juo Andrew Walkley. Outcomes. Advanced Class DVD-ROM. United Kingdom: National Gaographic Learning Cengage Learning, 2017.
MLA-čujuhus (9. p.)Dellar, Hugh, juo Andrew Walkley. Outcomes. Advanced Class DVD-ROM. National Gaographic Learning Cengage Learning, 2017.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.