Butterfield, J. (2017). Soft Skills for Everyone (2.). Cengage.
Chicago-čujuhus (17. p.)Butterfield, Jeff. Soft Skills for Everyone. 2. New Delhi: Cengage, 2017.
MLA-čujuhus (9. p.)Butterfield, Jeff. Soft Skills for Everyone. 2. Cengage, 2017.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.