Oliver, D. (2011). How to negotiate effectively (3rd ed.). Kogan Page.
Lua i Stíl Chicago (17ú heag.)Oliver, David. How to Negotiate Effectively. 3rd ed. London ; Philadelphia: Kogan Page, 2011.
Lua MLA (8ú heag.)Oliver, David. How to Negotiate Effectively. 3rd ed. Kogan Page, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.