Gaya APA
Encyclopedia international. ().
New York:
Grolier.
Gaya Chicago
Encyclopedia international.
.
New York:
Grolier,
.
Text.
Gaya MLA
Encyclopedia international.
.
New York:
Grolier,
.
Text.
Gaya Turabian
Encyclopedia international.
New York:
Grolier,
.
Print.