Gaya APA
Contemporary English book 2. (2003).
New York:
[s.n.].
Gaya Chicago
Contemporary English book 2.
second.
New York:
[s.n.],
2003.
Text.
Gaya MLA
Contemporary English book 2.
second.
New York:
[s.n.],
2003.
Text.
Gaya Turabian
Contemporary English book 2.
New York:
[s.n.],
2003.
Print.