Locker, K. O. (2004). Business communication. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Locker, Kitty O. Business Communication. McGraw-Hill, 2004.
Lua MLA (8ú heag.)Locker, Kitty O. Business Communication. McGraw-Hill, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.