Gaya APA
Essentials of Biology. (2007).
New York:
Mc Graw-Hill.
Gaya Chicago
Essentials of Biology.
.
New York:
Mc Graw-Hill,
2007.
Buku.
Gaya MLA
Essentials of Biology.
.
New York:
Mc Graw-Hill,
2007.
Buku.
Gaya Turabian
Essentials of Biology.
New York:
Mc Graw-Hill,
2007.
Buku.