Harvard Business Essentials. (2006). Marketer's Toolkit. Cengage Learning.
Chicago-čujuhus (17. p.)Harvard Business Essentials. Marketer's Toolkit. New Delhi: Cengage Learning, 2006.
MLA-čujuhus (9. p.)Harvard Business Essentials. Marketer's Toolkit. Cengage Learning, 2006.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.