Hart Henry <br/><br/>
Easy paths to the stars 

 - Allahabad  The Pioneer Press India      1913 
 - 60p.  cm. 
<br/><br/><label>Standard No.: </label>278,917 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MATHEMATICS
<br/><br/><label>Dewey Class. No.: </label>B9, E3