Lua APA (7ú heag.)

(1992). The Status of the Business and Professional Communication Course Karin McCallum. [microform].

Lua i Stíl Chicago (17ú heag.)

The Status of the Business and Professional Communication Course Karin McCallum. [microform]. 1992.

Lua MLA (9ú heag.)

The Status of the Business and Professional Communication Course Karin McCallum. [microform]. 1992.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.