Gaya APA
Heater, Derek, Berridge, G.R.. (1992).
Introduction to international politics .
New York:
Harvester Wheatsheaf.
Gaya Chicago
Heater, Derek, Berridge, G.R..
Introduction to international politics.
New York:
Harvester Wheatsheaf,
1992.
Text.
Gaya MLA
Heater, Derek, Berridge, G.R..
Introduction to international politics.
New York:
Harvester Wheatsheaf,
1992.
Text.
Gaya Turabian
Heater, Derek, Berridge, G.R..
Introduction to international politics.
New York:
Harvester Wheatsheaf,
1992.
Print.