Cowan David. (2014). Strategic Internal Communication. Kogan Page Limited.
Lua i Stíl Chicago (17ú heag.)Cowan David. Strategic Internal Communication. London: Kogan Page Limited, 2014.
Lua MLA (9ú heag.)Cowan David. Strategic Internal Communication. Kogan Page Limited, 2014.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.