Gaya APA

Park, H., Novianti, E, N. (2016). Why ? People Abraham Lincoln (cet. 1). Jakarta: PT. Elex media komputindo.

Gaya MLA

Park, Hyunjong., Novianti, Endah, Nawang. "Why ? People Abraham Lincoln". cet. 1 Jakarta: PT. Elex media komputindo, 2016. 900 Geografi & Sejarah.