Robinson, D. (2009). Business Etiquette (2nd ed.). Kogan Page India Pvt. Ltd.
Lua i Stíl Chicago (17ú heag.)Robinson, David. Business Etiquette. 2nd ed. New Delhi: Kogan Page India Pvt. Ltd, 2009.
Lua MLA (9ú heag.)Robinson, David. Business Etiquette. 2nd ed. Kogan Page India Pvt. Ltd, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.