(1992). Description of Writing Achievement Levels-Setting Process and Proposed Achievement Level Definitions 1992 National Assessment of Educational Progress. [microform].
Παραπομπή σε μορφή Chicago (17η εκδ.)Description of Writing Achievement Levels-Setting Process and Proposed Achievement Level Definitions 1992 National Assessment of Educational Progress. [microform]. 1992.
Παραπομπή σε μορφή MLA (9th εκδ.)Description of Writing Achievement Levels-Setting Process and Proposed Achievement Level Definitions 1992 National Assessment of Educational Progress. [microform]. 1992.
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