APA (7th ed.) Citation

Youngs, R. (2009). Energy security: Europe's new foreign policy challenge. Routledge.

Chicago Style (17th ed.) Citation

Youngs, Richard. Energy Security: Europe's New Foreign Policy Challenge. London ; New York: Routledge, 2009.

MLA (9th ed.) Citation

Youngs, Richard. Energy Security: Europe's New Foreign Policy Challenge. Routledge, 2009.

Warning: These citations may not always be 100% accurate.