Gaya APA
Animal ecologi. (1931).
New York:
Mc Graw Hill.
Gaya Chicago
Animal ecologi.
.
New York:
Mc Graw Hill,
1931.
Buku.
Gaya MLA
Animal ecologi.
.
New York:
Mc Graw Hill,
1931.
Buku.
Gaya Turabian
Animal ecologi.
New York:
Mc Graw Hill,
1931.
Buku.