Andreescu Titu  1956 <br/><br/>
Mathematical Olympiad challenges / 
Titu Andreescu, Razvan Gelca. 
 - Boston, Mass. :  Birkhauser,  2000. 
 - xv, 260 p. :  ill. ;  23 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0817641556 3764341556 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Problems exercises etc
<br/><br/><label>LC Class. No.: </label>QA43