Wright, R. J., Martland, J., & Stafford, A. K. Early numeracy: Assessment for teaching and intervention (2a ed.).
Čikaški stil citiranja (17. izdanje)Wright, Robert J., Jim Martland, i Ann K. Stafford. Early Numeracy: Assessment for Teaching and Intervention. 2a ed.
MLA način citiranja (8. izdanje)Wright, Robert J., et al. Early Numeracy: Assessment for Teaching and Intervention. 2a ed.
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