Nunes, T., Bryant, P., Hallett, D., Bell, D., & Evans, D. (2009). Teaching Children About the Inverse Relation Between Addition and Subtraction.
Chicago-viite (17. p.)Nunes, T., P. Bryant, D. Hallett, D. Bell, ja D. Evans. Teaching Children About the Inverse Relation Between Addition and Subtraction. 2009.
MLA-viite (9. p.)Nunes, T., et al. Teaching Children About the Inverse Relation Between Addition and Subtraction. 2009.
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