Sommerville, Duncan M'Laren Young,  1879-1934. <br/><br/>
An introduction to the geometry of n dimensions. 

 - New York:  Dover,  [1958]. 
 - xvii, 196 p.:  diagrs.,  21 cm. 
<br/><br/> "An unabridged and unaltered republication of the first edition." 
<br/><br/>Includes bibliographies. 
<br/><br/><label>LCCN: </label>58014335 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hyperspace
<br/><br/><label>Dewey Class. No.: </label>516.1  / S697i