Gaya APA
A text of systematic. (1946).
New York:
Mc Graw Hill.
Gaya Chicago
A text of systematic.
.
New York:
Mc Graw Hill,
1946.
Buku.
Gaya MLA
A text of systematic.
.
New York:
Mc Graw Hill,
1946.
Buku.
Gaya Turabian
A text of systematic.
New York:
Mc Graw Hill,
1946.
Buku.