Rivera Sheila. (2007). Pull Ahead Biographies Books Alexander Graha. Lerner.
Lua i Stíl Chicago (17ú heag.)Rivera Sheila. Pull Ahead Biographies Books Alexander Graha. UK: Lerner, 2007.
Lua MLA (9ú heag.)Rivera Sheila. Pull Ahead Biographies Books Alexander Graha. Lerner, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.