Hanna, M. S., & Wilson, G. L. (1998). Communicating in business and professional settings (4th ed.). McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Hanna, Michael S., agus Gerald L. Wilson. Communicating in Business and Professional Settings. 4th ed. New York: McGraw-Hill, 1998.
Lua MLA (9ú heag.)Hanna, Michael S., agus Gerald L. Wilson. Communicating in Business and Professional Settings. 4th ed. McGraw-Hill, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.