Boon, F.C. <br/><br/>
Puzzle papers in arithmetic / 
by F. C. Boon 
 - Rev. and enlargerd edition. 
 - London:  G. Bell and sons Ltd.,  1937 
 - 64 p.:  diagrs;  18 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arithmetic.
<br/><br/><label>Dewey Class. No.: </label>511.9 BOO