APA (7th ed.) Citation

Protasio, J. (2011). The day the world was shocked: The Lusitania disaster and its influence on the course of World War I. CASEMATE.

Chicago Style (17th ed.) Citation

Protasio, John. The Day the World Was Shocked: The Lusitania Disaster and Its Influence on the Course of World War I. Philadelphia: CASEMATE, 2011.

MLA (9th ed.) Citation

Protasio, John. The Day the World Was Shocked: The Lusitania Disaster and Its Influence on the Course of World War I. CASEMATE, 2011.