APA (7. basım) Alıntı

Sia, L. O. (1995). 21st century mathematics. Second year. Phoenix.

Chicago Style (17. basım) Atıf

Sia, Lucy O. 21st Century Mathematics. Second Year. Quezon City: Phoenix, 1995.

MLA (9th ed.) Atıf

Sia, Lucy O. 21st Century Mathematics. Second Year. Phoenix, 1995.