Gaya APA
Principles of political thougt. (1964).
New York:
[s.n.].
Gaya Chicago
Principles of political thougt.
Ed. 1.
New York:
[s.n.],
1964.
Text.
Gaya MLA
Principles of political thougt.
Ed. 1.
New York:
[s.n.],
1964.
Text.
Gaya Turabian
Principles of political thougt.
New York:
[s.n.],
1964.
Print.