Bardoody, A. J., & Dowker, A. The development of arithmetic concepts and skills: Constructing adaptive expertise.
Čikaški stil citiranja (17. izdanje)Bardoody, Arthur J., i Ann Dowker. The Development of Arithmetic Concepts and Skills: Constructing Adaptive Expertise.
MLA način citiranja (8. izdanje)Bardoody, Arthur J., i Ann Dowker. The Development of Arithmetic Concepts and Skills: Constructing Adaptive Expertise.
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