Djukic, D., Jankovic, V., Matic, I., & Petrovic, N. (2011). The IMO compendium: A collection of problems suggested for the International Mathematical Olympiads,1959-2009 (2nd ed.). Springer New York.
Chicago Style (17th ed.) CitationDjukic, Dusan, Vladimir Jankovic, Ivan Matic, and Nikola Petrovic. The IMO Compendium: A Collection of Problems Suggested for the International Mathematical Olympiads,1959-2009. 2nd ed. New York, NY: Springer New York, 2011.
MLA (9th ed.) CitationDjukic, Dusan, et al. The IMO Compendium: A Collection of Problems Suggested for the International Mathematical Olympiads,1959-2009. 2nd ed. Springer New York, 2011.
Warning: These citations may not always be 100% accurate.