Gaya APA
Contemporary English book 3. (2003).
New York:
[s.n.].
Gaya Chicago
Contemporary English book 3.
.
New York:
[s.n.],
2003.
Text.
Gaya MLA
Contemporary English book 3.
.
New York:
[s.n.],
2003.
Text.
Gaya Turabian
Contemporary English book 3.
New York:
[s.n.],
2003.
Print.