Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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

Atenció: Aquestes cites poden no estar 100% correctes.