Gaya APA

Andreescu, T., Feng, Z. (2005). 103 Trigonometry Problems (1st ed. 2005.). Boston: Birkhauser.

Gaya MLA

Andreescu, Titu.., Feng, Zuming.. "103 Trigonometry Problems". 1st ed. 2005. Boston: Birkhauser, 2005. E Book.