Gaya APA
Psychology:an introduction. (2007).
New York:
[s.n.].
Gaya Chicago
Psychology:an introduction.
.
New York:
[s.n.],
2007.
Text.
Gaya MLA
Psychology:an introduction.
.
New York:
[s.n.],
2007.
Text.
Gaya Turabian
Psychology:an introduction.
New York:
[s.n.],
2007.
Print.