APA Style
Ian, G.
(1995).
Alam Semesta: Kenyataan, Cerita, Aktivitas
(
Edisi 1)
.
Jakarta:
Quality Press.
MLA Style
Ian, Graham.
"Alam Semesta: Kenyataan, Cerita, Aktivitas".
Edisi 1
Jakarta:
Quality Press,
1995.
Textbook.