Gaya APA

Sagan, C., Druyan, A. (2023). Shadows of forgotten ancestors : Bayan-bayang leluhur (Cet. 1). Jakarta: KPG (kepustakaan populer gramedia).

Gaya MLA

Sagan, Carl.., Druyan, Ann. "Shadows of forgotten ancestors : Bayan-bayang leluhur". Cet. 1 Jakarta: KPG (kepustakaan populer gramedia), 2023. Text.