Andreescu, T., & Gelca, R. Mathematical olympiad challenges.
Chicago Edition CitationAndreescu, Titu, and Razvan Gelca. Mathematical Olympiad Challenges. Springer (India) Private Ltd., New Delhi.
MLA Edition CitationAndreescu, Titu, and Razvan Gelca. Mathematical Olympiad Challenges.
Warning: These citations may not always be 100% accurate.