Djukic, D., et al The IMO compendium collection of problems suggested for the international mathematical olympiads 1956-2004 D. Djukic, et al - New Delhi Springer (India) Pvt. Ltd 2010 - xiv 740 - Problem books in mathematics . SIE ISBN: 9788184895254 Dewey Class. No.: 510.76 / DJU