APA استشهاد

Andreescu, T. (2011). Mathematical olympiad treasures (2nd. ed.). Birkhauser.

استشهاد بنمط شيكاغو

Andreescu, Titu. Mathematical Olympiad Treasures. 2nd. ed. New York: Birkhauser, 2011.

MLA استشهاد

Andreescu, Titu. Mathematical Olympiad Treasures. 2nd. ed. Birkhauser, 2011.