The teaching of arithmatic and elementarymathematics
Summer, W L
The teaching of arithmatic and elementarymathematics - Oxford Basil Blackwell 1947 - iv, 252 p. 19 cm.
Roman
Mathematics - study and teaching
510.07
The teaching of arithmatic and elementarymathematics - Oxford Basil Blackwell 1947 - iv, 252 p. 19 cm.
Roman
Mathematics - study and teaching
510.07