Gaya APA

Gyeong-eun, P. (2013). Why? World War I & Ii That Shook Up The World (Cetakan Pertama). : Elex Media Komputindo.

Gaya MLA

Gyeong-eun, Park. "Why? World War I & Ii That Shook Up The World". Cetakan Pertama : Elex Media Komputindo, 2013. Text.