(2007). Aligning Science Assessment Standards: Texas & the 2009 National Assessment of Educational Progress. Regional Educational Laboratory Program.
Lua i Stíl Chicago (17ú heag.)Aligning Science Assessment Standards: Texas & the 2009 National Assessment of Educational Progress. Regional Educational Laboratory Program, 2007.
Lua MLA (9ú heag.)Aligning Science Assessment Standards: Texas & the 2009 National Assessment of Educational Progress. Regional Educational Laboratory Program, 2007.
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