Cita APA (7th ed.)

Bardoody, A. J., & Dowker, A. The development of arithmetic concepts and skills: Constructing adaptive expertise.

Cita Chicago (17th ed.)

Bardoody, Arthur J., i Ann Dowker. The Development of Arithmetic Concepts and Skills: Constructing Adaptive Expertise.

Cita MLA (8th ed.)

Bardoody, Arthur J., i Ann Dowker. The Development of Arithmetic Concepts and Skills: Constructing Adaptive Expertise.