Lua APA (7ú heag.)

Keeler, R. (2005). Double-check your workplace English. New Day.

Lua i Stíl Chicago (17ú heag.)

Keeler, Richard. Double-check Your Workplace English. Quezon City: New Day, 2005.

Lua MLA (9ú heag.)

Keeler, Richard. Double-check Your Workplace English. New Day, 2005.

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