Gaya APA

Darwin, C., Onggo, I, T. (2021). The origin of species by means of natural selection (-). Yogyakarta: Indoliterasi.

Gaya MLA

Darwin, Charles,., Onggo, Ira, Tri. "The origin of species by means of natural selection". - Yogyakarta: Indoliterasi, 2021. Text.