Gaya APA
Roberts, Geoffrey. (1971).
a Dictionary of political analysis .
New York:
Longman.
Gaya Chicago
Roberts, Geoffrey.
a Dictionary of political analysis.
New York:
Longman,
1971.
Text.
Gaya MLA
Roberts, Geoffrey.
a Dictionary of political analysis.
New York:
Longman,
1971.
Text.
Gaya Turabian
Roberts, Geoffrey.
a Dictionary of political analysis.
New York:
Longman,
1971.
Print.