Needle, D. (2009). Business in Context - 4th Ed. Cengage Learning.
Chicago-čujuhus (17. p.)Needle, David. Business in Context - 4th Ed. London: Cengage Learning, 2009.
MLA-čujuhus (9. p.)Needle, David. Business in Context - 4th Ed. Cengage Learning, 2009.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.