APA (7th ed.) Citation

Somervell, E. L. (1975). A rhythmic approach to mathematics. National Council of Teachers of Mathematics.

Chicago Style (17th ed.) Citation

Somervell, Edith L. A Rhythmic Approach to Mathematics. [Reston, Va.]: National Council of Teachers of Mathematics, 1975.

MLA (8th ed.) Citation

Somervell, Edith L. A Rhythmic Approach to Mathematics. National Council of Teachers of Mathematics, 1975.

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