MLA

Andreescu, Titu, and Bogdan Enescu. Mathematical Olympiad Treasures. Birkhäuser Boston, 2012.

APA

Andreescu, T., & Enescu, B. (2012). Mathematical Olympiad Treasures. Birkhäuser Boston.

Chicago

Andreescu, Titu, and Bogdan Enescu. Mathematical Olympiad Treasures. : Birkhäuser Boston, 2012.