Doyle, J. (2013). Create Success. Mc GrawHill.
Lua i Stíl Chicago (17ú heag.)Doyle, Jon. Create Success. Mc GrawHill, 2013.
Lua MLA (8ú heag.)Doyle, Jon. Create Success. Mc GrawHill, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.