Gaya APA

Sholikhah, I, M. et al (1978). Cosmic Evolution: An Introduction To Astronomy . New Jersey: Houghton Mifflin Company.

Gaya MLA

Sholikhah, Ika, Maratus. et al. "Cosmic Evolution: An Introduction To Astronomy". New Jersey: Houghton Mifflin Company, 1978. Text.