Παραπομπή APA

Andreescu, T., Andrica, D., & Feng, Z. (2007). 104 number theory problems: From the training of the USA IMO team. Birkh�user.

Παραπομπή Chicago Style

Andreescu, Titu, D. Andrica, και Zuming Feng. 104 Number Theory Problems: From the Training of the USA IMO Team. Boston: Birkh�user, 2007.

Παραπομπή MLA

Andreescu, Titu, et al. 104 Number Theory Problems: From the Training of the USA IMO Team. Birkh�user, 2007.