National Assessment of Educational Progress. (1979). Mathematical knowledge and skills: Selected results fron the second assessment of mathematics. The Assessment.
Cytowanie według stylu Chicago (wyd. 17)National Assessment of Educational Progress. Mathematical Knowledge and Skills: Selected Results Fron the Second Assessment of Mathematics. Denver: The Assessment, 1979.
Cytowanie według stylu MLA (wyd. 9)National Assessment of Educational Progress. Mathematical Knowledge and Skills: Selected Results Fron the Second Assessment of Mathematics. The Assessment, 1979.
Uwaga: Te cytaty mogą odróżniać się od wytycznej twojego fakultetu..