Broom, G. M. (1990). Using research in public relations. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Broom, Glen M. Using Research in Public Relations. Prentice Hall, 1990.
Lua MLA (8ú heag.)Broom, Glen M. Using Research in Public Relations. Prentice Hall, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.