Murphy, H. (1972). Effective Business communications. McGraw Hill.
Lua i Stíl Chicago (17ú heag.)Murphy, H. Effective Business Communications. New York: McGraw Hill, 1972.
Lua MLA (9ú heag.)Murphy, H. Effective Business Communications. McGraw Hill, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.