Northrop, Eugene Purdy,  1908- <br/><br/>
Riddles in mathematics:  a book of paradoxes/ 
Eugene P. Northro p. 
 - London:  Hodder and Stoughton,  1947. 
 - x, 242 p.:  illus.;  23 cm. 
<br/><br/> First printed 1945  "Notes and references": p. 228-234  Pages 241-2 missing 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematical recreations
<br/><br/><label>Dewey Class. No.: </label>510 NOR