APA Edition Citation

Andreescu, T., & Andreescu, T. A. (2007). 104 number theory problems. Birkhauser.

Chicago Edition Citation

Andreescu, Titu, and Titu; Andrica Andreescu. 104 Number Theory Problems. Boston: Birkhauser, 2007.

MLA Edition Citation

Andreescu, Titu, and Titu; Andrica Andreescu. 104 Number Theory Problems. Birkhauser, 2007.

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