References
- Azevedo, Cândido de. A Censura de Salazar e Marcelo Caetano [The censorship of Salazar and Marcelo Caetano]. Lisboa: Caminho, 1999.
- Barros, Júlia Leitão de. “O Caso Shell.” História 147 (1991): 55–83.
- Barros, Júlia Leitão de. O Fenómeno de Opinião em Portugal [The phenomenon of opinion in Portugal]. Lisboa: s.n., 1993.
- Briggs, Asa. The War of Words. Vol. 3 of the History of Broadcasting in the United Kingdom. Oxford: Oxford University Press, 1970.
- BBC. BBC Year Book 1945. London: BBC, 1946.
- Carvalho, Alberto Arons de. A Censura e as Leis de Imprensa [Censorship and press laws]. Lisboa: Seara Nova, 1973.
- Cole, Robert. Britain and the War of Words in Neutral Europe 1939–1945: The Art of the Possible. London: Macmillan, 1990.
- Egerton, Frederick Clement. Salazar, Rebuilder of Portugal. London: Hodder & Stoughton, 1943.
- Gomes, Joaquim Cardoso. Os Militares e a Censura: A Censura à Imprensa na Ditadura Militar e Estado Novo (1926–1945) [The military and censorship: Press censorship during the military dictatorship and the Estado Novo (1926–1945)]. Lisboa: Livros Horizonte, 2006.
- Lochery, Neill. Lisbon: War in the Shadows of the City of Light, 1939–1945. New York: Public Affairs, 2011.
- Murphy, Christopher J. “SOE's Foreign Currency Transactions.” In The Politics and Strategy of Clandestine War: Special Operations Executive, 1940–1946, edited by Neville Wylie, 191–208. London: Routledge, 2007.
- Oliveira, César de. “Cortesão, Jaime.” In Dicionário do Estado Novo [Dictionary of the Estado Novo], Vol. 1, edited by Fernando Rosas and J. M. Brandão de Brito, 228–229. Venda Nova: Bertrand, 1996.
- Ribeiro, Nelson. A Emissora Nacional nos Primeiros Anos do Estado Novo (1933–1945) [The state broadcaster during the initial years of the Estado Novo (1933–1945)]. Lisboa: Quimera, 2005.
- Ribeiro, Nelson. “Salazar's Interference in the BBC Portuguese Service during World War II.” Journalism Studies 11, no. 2 (2010): 257–269. doi:10.1080/14616700903217471.
- Ribeiro, Nelson. BBC Broadcasts to Portugal during World War II: How Radio Was Used as a Weapon of War. Lewiston; NY: Edwin Mellen, 2011.
- Ribeiro, Nelson. “António Pedro: The Voice of Democracy in the BBC Portuguese Section during World War II”. Portuguese Cultural Studies 5 (2013): 70–90.
- Rosas, Fernando. “O Estado Novo”. In História de Portugal [History of Portugal], Vol. 7, edited by José Mattoso. Lisboa: Editorial Estampa, 1994.
- Telo, António José. Propaganda e Guerra Secreta em Portugal 1939–1945 [Propaganda and secret war in Portugal 1939–1945]. Lisboa: Perspectivas & Realidades, 1990.
- Telo, António José. Portugal na Segunda Guerra 1941–1945 [Portugal in the Second World War 1941–1945], Vol. 1. Lisboa: Veja, 1991.
- Telo, António José. “As Relações Peninsulares num Período de Guerras Globais (1935–1945) [The peninsular relations in a period of Global Wars (1935–1945)].” In Portugal e a Guerra Civil de Espanha [Portugal in the Spanish Civil War], edited by Fernando Rosas, 133–151. Lisboa: Colibri, 1998.
- Wylie, Neville. “SOE and the Neutrals.” In Special Operations Executive. A New Instrument of War, edited by Mark Seaman, 157–178. London: Routledge, 2006.