Graham, L. A. <br/><br/>
Ingenious mathematical problems and methods /  
by L. A. Graham 
 - New York :   Dover,   1956 
 - vii, 237 p. :   gráf., il. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MATEMATICAS<br/>ALGEBRA<br/>ECUACIONES<br/>VECTORES
<br/><br/><label>Universal Decimal Class. No.: </label>51(076)