Lua APA (7ú heag.)

Hartley, B., & Viney, P. Steamline english destinations workbook B Units 41-80 (7a ed.).

Lua i Stíl Chicago (17ú heag.)

Hartley, Bernard, agus Peter Viney. Steamline English Destinations Workbook B Units 41-80. 7a ed.

Lua MLA (8ú heag.)

Hartley, Bernard, agus Peter Viney. Steamline English Destinations Workbook B Units 41-80. 7a ed.

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