APA (7th ed.) Citation

HEATER, D., & BERRIDGE, R. (1992). Introduction to international politics. Harvester Wheatsheaf.

Chicago Style (17th ed.) Citation

HEATER, Derek, and R. BERRIDGE. Introduction to International Politics. New york: Harvester Wheatsheaf, 1992.

MLA (9th ed.) Citation

HEATER, Derek, and R. BERRIDGE. Introduction to International Politics. Harvester Wheatsheaf, 1992.