Cotton, D., Falvey, D., & Kent, S. (2004). Elementary Business English: Course book. Pearson Education.
Lua i Stíl Chicago (17ú heag.)Cotton, David, David Falvey, agus Simon Kent. Elementary Business English: Course Book. Essex: Pearson Education, 2004.
Lua MLA (9ú heag.)Cotton, David, et al. Elementary Business English: Course Book. Pearson Education, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.