APA (7th ed.) Citation

National Assessment of Educational Progress, E. C. o. t. S. (1979). mathematical understanding: Selected results from the second assessment of mathematics. The Assessment.

Chicago Style (17th ed.) Citation

National Assessment of Educational Progress, Education Commission of the States. Mathematical Understanding: Selected Results from the Second Assessment of Mathematics. Denver: The Assessment, 1979.

MLA (9th ed.) Citation

National Assessment of Educational Progress, Education Commission of the States. Mathematical Understanding: Selected Results from the Second Assessment of Mathematics. The Assessment, 1979.

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