Lua APA (7ú heag.)
Protasio, J. (2011). The day the world was shocked: The Lusitania disaster and its influence on the course of World War I. CASEMATE.
Lua i Stíl Chicago (17ú heag.)
Protasio, John. The Day the World Was Shocked: The Lusitania Disaster and Its Influence on the Course of World War I. Philadelphia: CASEMATE, 2011.
Lua MLA (9ú heag.)
Protasio, John. The Day the World Was Shocked: The Lusitania Disaster and Its Influence on the Course of World War I. CASEMATE, 2011.
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