APA (7th ed.) Citation

Andreescu, T. (2009). Mathematical Olympiad Challenges. Birkhäuser Boston. https://doi.org/10.1007/978-0-8176-4611-0

Chicago Style (17th ed.) Citation

Andreescu, Titu. Mathematical Olympiad Challenges. Boston, MA: Birkhäuser Boston, 2009. https://doi.org/10.1007/978-0-8176-4611-0.

MLA (9th ed.) Citation

Andreescu, Titu. Mathematical Olympiad Challenges. Birkhäuser Boston, 2009. https://doi.org/10.1007/978-0-8176-4611-0.