Seeley & Hargreaves. (2003). Managing in the emeil office. Butterworth-Heinemann.
Lua i Stíl Chicago (17ú heag.)Seeley agus Hargreaves. Managing in the Emeil Office. Oxford: Butterworth-Heinemann, 2003.
Lua MLA (8ú heag.)Seeley agus Hargreaves. Managing in the Emeil Office. Butterworth-Heinemann, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.