Turner, M. (1993). Business writing. Hodder & Stoughton.
Lua i Stíl Chicago (17ú heag.)Turner, Mary. Business Writing. London: Hodder & Stoughton, 1993.
Lua MLA (9ú heag.)Turner, Mary. Business Writing. Hodder & Stoughton, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.