Ferguson Alex. (2015). Leading. Hodder & Stoughton.
Lua i Stíl Chicago (17ú heag.)Ferguson Alex. Leading. London: Hodder & Stoughton, 2015.
Lua MLA (9ú heag.)Ferguson Alex. Leading. Hodder & Stoughton, 2015.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.