Coe, L., & Lloyd, P. (1984). Public relations (4th ed.). Hodder & Stoughton.
Lua i Stíl Chicago (17ú heag.)Coe, Lloyd, agus Peter Lloyd. Public Relations. 4th ed. Sevenoaks: Hodder & Stoughton, 1984.
Lua MLA (9ú heag.)Coe, Lloyd, agus Peter Lloyd. Public Relations. 4th ed. Hodder & Stoughton, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.