Gaya APA
Biology : A guide to the natural world. (2011).
Boston:
Pearson.
Gaya Chicago
Biology : A guide to the natural world.
5.
Boston:
Pearson,
2011.
Buku.
Gaya MLA
Biology : A guide to the natural world.
5.
Boston:
Pearson,
2011.
Buku.
Gaya Turabian
Biology : A guide to the natural world.
Boston:
Pearson,
2011.
Buku.