Gaya APA
Essentials of Biology. (1969).
New York:
Holt,Rinehard,and Winston.
Gaya Chicago
Essentials of Biology.
.
New York:
Holt,Rinehard,and Winston,
1969.
Buku.
Gaya MLA
Essentials of Biology.
.
New York:
Holt,Rinehard,and Winston,
1969.
Buku.
Gaya Turabian
Essentials of Biology.
New York:
Holt,Rinehard,and Winston,
1969.
Buku.