Tohutoro APA (7th ed.)

Valens, E. G. (1964). The number of things: Pythagoras, geometry, and humming strings (First edition.). Dutton.

Tohutoru Kātū Chicago (17th ed.)

Valens, Evans G. The Number of Things: Pythagoras, Geometry, and Humming Strings. First edition. New York: Dutton, 1964.

Tohutoro MLA (9th ed.)

Valens, Evans G. The Number of Things: Pythagoras, Geometry, and Humming Strings. First edition. Dutton, 1964.