National Council of Teachers of Mathematics & Lester, F. K. (2007). Second handbook of research on mathematics teaching and learning: A project of the National Council of teachers of mathematics. Information Age Pub..
Παραπομπή σε μορφή Chicago (17η εκδ.)National Council of Teachers of Mathematics και Frank K. Lester. Second Handbook of Research on Mathematics Teaching and Learning: A Project of the National Council of Teachers of Mathematics. Charlotte, NC: Information Age Pub., 2007.
Παραπομπή σε μορφή MLA (9th εκδ.)National Council of Teachers of Mathematics και Frank K. Lester. Second Handbook of Research on Mathematics Teaching and Learning: A Project of the National Council of Teachers of Mathematics. Information Age Pub., 2007.
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