Andreescu, T., & Enescu, B. (2011). Mathematical Olympiad treasures (2nd ed.). Birkhäuser.
Chicago Edition CitationAndreescu, Titu, and Bogdan Enescu. Mathematical Olympiad Treasures. 2nd ed. New York: Birkhäuser, 2011.
MLA Edition CitationAndreescu, Titu, and Bogdan Enescu. Mathematical Olympiad Treasures. 2nd ed. Birkhäuser, 2011.
Warning: These citations may not always be 100% accurate.