Hartley, P. (1993). Interpersonal communication. Routledge.
Lua i Stíl Chicago (17ú heag.)Hartley, Peter. Interpersonal Communication. London: Routledge, 1993.
Lua MLA (9ú heag.)Hartley, Peter. Interpersonal Communication. Routledge, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.