Παραπομπή APA

Andreescu, T., & Feng , Z. (2005). One hundred and three trigonometry Problems: From the training of the USA IMO Team. Springer (India) Pvt. Ltd..

Παραπομπή Chicago Style

Andreescu, Titu, και Zuming Feng. One Hundred and Three Trigonometry Problems: From the Training of the USA IMO Team. New Delhi: Springer (India) Pvt. Ltd., 2005.

Παραπομπή MLA

Andreescu, Titu, και Zuming Feng. One Hundred and Three Trigonometry Problems: From the Training of the USA IMO Team. Springer (India) Pvt. Ltd., 2005.