APA (7th ed.) Citation

Andreescu, T., & Enescu, B. (2006). Mathematical Olympiad treasures. Birkhäuser.

Chicago Style (17th ed.) Citation

Andreescu, Titu, and Bogdan Enescu. Mathematical Olympiad Treasures. Boston [u.a.]: Birkhäuser, 2006.

MLA (9th ed.) Citation

Andreescu, Titu, and Bogdan Enescu. Mathematical Olympiad Treasures. Birkhäuser, 2006.

Warning: These citations may not always be 100% accurate.