Gaya APA
International Relation. (2007).
New York:
[s.n.].
Gaya Chicago
International Relation.
.
New York:
[s.n.],
2007.
Text.
Gaya MLA
International Relation.
.
New York:
[s.n.],
2007.
Text.
Gaya Turabian
International Relation.
New York:
[s.n.],
2007.
Print.