Welch, j. Winning: The Answers. harper Collins.
Lua i Stíl Chicago (17ú heag.)Welch, jack. Winning: The Answers. harper Collins.
Lua MLA (9ú heag.)Welch, jack. Winning: The Answers. harper Collins.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.