Valens, E. G. (1964). Number of things: Pythagoras, geometry and humming strings. Methuen.
Chicago Edition CitationValens, Evans G. Number of Things: Pythagoras, Geometry and Humming Strings. Methuen, 1964.
MLA Edition CitationValens, Evans G. Number of Things: Pythagoras, Geometry and Humming Strings. Methuen, 1964.
Warning: These citations may not always be 100% accurate.