Cita APA

Roskill, S. W. (1956). The war at sea 1939-1945: 2 The period of balance. The war at sea 1939-1945.

Citación estilo Chicago

Roskill, Stephen Wentworth. "The War at Sea 1939-1945: 2 The Period of Balance." The War at Sea 1939-1945 1956.

Cita MLA

Roskill, Stephen Wentworth. "The War at Sea 1939-1945: 2 The Period of Balance." The War at Sea 1939-1945, 1956.