Association of Teachers of Mathematics. Research and Development Panel & British National Committee for Mathematics. Sub-Committee on Mathematical Instruction. (1966). The development of mathematical activity in children: The place of the problem in this development. Association of Teachers of Mathematics.
Cita Chicago (17th ed.)Association of Teachers of Mathematics. Research and Development Panel i British National Committee for Mathematics. Sub-Committee on Mathematical Instruction. The Development of Mathematical Activity in Children: The Place of the Problem in This Development. Nelson (Lancs.): Association of Teachers of Mathematics, 1966.
Cita MLA (9th ed.)Association of Teachers of Mathematics. Research and Development Panel i British National Committee for Mathematics. Sub-Committee on Mathematical Instruction. The Development of Mathematical Activity in Children: The Place of the Problem in This Development. Association of Teachers of Mathematics, 1966.