Williams, Kenneth S. <br/><br/>
Redbook of mathematical problems / 
Williams, Kenneth S. 
 - New York:  Dover Publications;  1996. 
 - ix, 174p. 
<br/><br/><label>Subjects--Index Terms: </label>Mathematics. 
<br/><br/><label>Universal Decimal Class. No.: </label>51(076.2)  / WIL