GUY,R K <br/><br/>
UNSOLVED PROBLEMS IN NUMBER THEORY VOL.I: UNSOLVED PROBLEMS IN INTUITIVE MATHEMA 

 - I 
 - NEW YORK  Springer  1994 
 - 24X16 
<br/><br/><label>ISBN: </label>0387942890 
<br/><br/><label>Dewey Class. No.: </label>512.81 G986