Gaya APA
American Goverment Power and Purpose . (2013).
New York:
[s.n.].
Gaya Chicago
American Goverment Power and Purpose .
ed.13.
New York:
[s.n.],
2013.
Text.
Gaya MLA
American Goverment Power and Purpose .
ed.13.
New York:
[s.n.],
2013.
Text.
Gaya Turabian
American Goverment Power and Purpose .
New York:
[s.n.],
2013.
Print.