APA Style

Sagan, C., Druyan, A. (2023). Shadows of Forgotten Ancestors = Bayang-Bayang Leluhur (Cet. 1). Jakarta: KPG (Kepustakaan Populer Gramedia).

MLA Style

Sagan, Carl., Druyan, Ann. "Shadows of Forgotten Ancestors = Bayang-Bayang Leluhur". Cet. 1 Jakarta: KPG (Kepustakaan Populer Gramedia), 2023. Text.