APA (7th ed.) Citation

Valens, E. G. (1965). The number of things: Pythagoras, geometry, and humming strings. Methuen.

Chicago Style (17th ed.) Citation

Valens, Evans G. The Number of Things: Pythagoras, Geometry, and Humming Strings. London: Methuen, 1965.

MLA (9th ed.) Citation

Valens, Evans G. The Number of Things: Pythagoras, Geometry, and Humming Strings. Methuen, 1965.

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