Burington R S <br/><br/>
Handbook of mathematical and formulas 
Burington R S 
 - Ed.4 
 - London  Mcgraw--Hill            1965 
 - 423p  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>Bd, K5