APA (7th ed.) Citation

Sumner, W. L. (1949). The teaching of arithmetic and elemnetary mathematics. Basil Blackwell.

Chicago Style (17th ed.) Citation

Sumner, W. L. The Teaching of Arithmetic and Elemnetary Mathematics. Basil Blackwell, 1949.

MLA (8th ed.) Citation

Sumner, W. L. The Teaching of Arithmetic and Elemnetary Mathematics. Basil Blackwell, 1949.

Warning: These citations may not always be 100% accurate.