Gaya APA
Darwin, C., Susilohardo, , F. (2002).
The Origin of species : asal-usul species .
Yogyakarta:
Ikon Teralitera.
Gaya MLA
Darwin, Charles., Susilohardo, , F..
"The Origin of species : asal-usul species".
Yogyakarta:
Ikon Teralitera,
2002.
Text.