Gaya APA
The Origin of Species. (1998).
Hertfordshire:
Wordsworth Classics.
Gaya Chicago
The Origin of Species.
.
Hertfordshire:
Wordsworth Classics,
1998.
Buku.
Gaya MLA
The Origin of Species.
.
Hertfordshire:
Wordsworth Classics,
1998.
Buku.
Gaya Turabian
The Origin of Species.
Hertfordshire:
Wordsworth Classics,
1998.
Buku.