Valens, Evans G., <br/><br/>
The number of things :  pythagoras, geometry, and humming strings 

 - First edition. 
 - New York :  Dutton,  1964. 
 - 189 pages. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Analytic--Plane.<br/>Geometry.<br/>Geometry.<br/>Mathematics.<br/>Plane.<br/>Pythagorean theorem.
<br/><br/><label>LC Class. No.: </label>QA460.P8V27