ANDREESCU(Titu) & GELCA(Razvan) <br/><br/>
Mathematical olympiad challenges 

 - 2nd ed. 
 - Birkhauser  Boston  2009 
 - Pbk.xvii p. + 283 
<br/><br/><label>ISBN: </label>9780817645281 
<br/><br/><label>Source: </label>SIPHO/2014/CRB/526