Wright, R. J., Martland, J., Stafford, A. K., & Stanger, G. (2006). Teaching number: Advancing children's skills and strategies (2nd edition.). P. Chapman Pub. ; SAGE Pblications.
Παραπομπή σε μορφή Chicago (17η εκδ.)Wright, Robert J., Jim Martland, Ann K. Stafford, και Garry Stanger. Teaching Number: Advancing Children's Skills and Strategies. 2nd edition. London ; Thousand Oaks, Calif.: P. Chapman Pub. ; SAGE Pblications, 2006.
Παραπομπή σε μορφή MLA (8th εκδ.)Wright, Robert J., et al. Teaching Number: Advancing Children's Skills and Strategies. 2nd edition. P. Chapman Pub. ; SAGE Pblications, 2006.
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