The training of elementary school teachers in mathematics in the countries represented in the International Commission on the Teaching of Mathematics / by I.L. Kandel ; with the editorial cooperation of David Eugene Smith, William F. Osgood, J.W.A. Young. (Bulletin)
The training of elementary school teachers in mathematics in the countries represented in the International Commission on the Teaching of Mathematics / by I.L. Kandel ; with the editorial cooperation of David Eugene Smith, William F. Osgood, J.W.A. Young.