(2007). Aligning Science Standards: Arkansas & the 2009 National Assessment of Educational Progress. Regional Educational Laboratory Program.
Lua i Stíl Chicago (17ú heag.)Aligning Science Standards: Arkansas & the 2009 National Assessment of Educational Progress. Regional Educational Laboratory Program, 2007.
Lua MLA (9ú heag.)Aligning Science Standards: Arkansas & the 2009 National Assessment of Educational Progress. Regional Educational Laboratory Program, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.