Gaya APA
DARWIN, C.
(2007).
The Origin of Species - Asal-Usul Species
(
2)
.
Jakarta:
Yayasan Obor Indonesia .
Gaya MLA
DARWIN, Charles.
"The Origin of Species - Asal-Usul Species".
2
Jakarta:
Yayasan Obor Indonesia ,
2007.
Printed.