Needle, D. (2009). Business in Context - 4th Ed. Cengage Learning.
Citazione stile Chigago Style (17a edizione)Needle, David. Business in Context - 4th Ed. London: Cengage Learning, 2009.
Citatione MLA (9a ed.)Needle, David. Business in Context - 4th Ed. Cengage Learning, 2009.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.