Hartley, J. (1980). The Psychology of written communication: Selected readings. Kogan Page.
Lua i Stíl Chicago (17ú heag.)Hartley, James. The Psychology of Written Communication: Selected Readings. London: Kogan Page, 1980.
Lua MLA (9ú heag.)Hartley, James. The Psychology of Written Communication: Selected Readings. Kogan Page, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.