Martin Roger L. (2015). Getting Beyond Better. Harvard Bus. School.
Chicago-čujuhus (17. p.)Martin Roger L. Getting Beyond Better. Boston: Harvard Bus. School, 2015.
MLA-čujuhus (9. p.)Martin Roger L. Getting Beyond Better. Harvard Bus. School, 2015.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.