Bardoody, A. J., & Dowker, A. The development of arithmetic concepts and skills: Constructing adaptive expertise.
芝加哥风格引文Bardoody, Arthur J., 与 Ann Dowker. The Development of Arithmetic Concepts and Skills: Constructing Adaptive Expertise.
MLA引文Bardoody, Arthur J., 与 Ann Dowker. The Development of Arithmetic Concepts and Skills: Constructing Adaptive Expertise.
警告：这些引文格式不一定是100％准确.