Wood, J. (1988). Speaking effectively. Randon house.
Lua i Stíl Chicago (17ú heag.)Wood, James. Speaking Effectively. New York: Randon house, 1988.
Lua MLA (9ú heag.)Wood, James. Speaking Effectively. Randon house, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.