Graham, L <br/><br/>
Ingenious mathematical problems and methods / 
L. Graham 
 - New York:  Dover Publications ,  1959 
 - 237 p. :  ill. ;  21 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematical recreations<br/>Mathematics--Problems, exercises, etc
<br/><br/><label>Dewey Class. No.: </label>510.76 GRA