Gaya APA
The Practical Skeptic. (2008).
New York:
[s.n.].
Gaya Chicago
The Practical Skeptic.
4th.
New York:
[s.n.],
2008.
Text.
Gaya MLA
The Practical Skeptic.
4th.
New York:
[s.n.],
2008.
Text.
Gaya Turabian
The Practical Skeptic.
New York:
[s.n.],
2008.
Print.