Rivera Sheila. (2008). First Step Non Fiction Forest. Lerner.
Lua i Stíl Chicago (17ú heag.)Rivera Sheila. First Step Non Fiction Forest. UK: Lerner, 2008.
Lua MLA (9ú heag.)Rivera Sheila. First Step Non Fiction Forest. Lerner, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.