APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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

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