Gaya APA

Gillett, G, N, A, A. (2019). Geography : IB Diploma Programme (Oxford IB Prepared) . United Kingdom: Oxford Uniersity Press.

Gaya MLA

Gillett, Garret, Nagle, And, Anthony. "Geography : IB Diploma Programme (Oxford IB Prepared)". United Kingdom: Oxford Uniersity Press, 2019. Text.