Petikan karya

• Barone, João (2013). 1942: O Brasil e sua guerra quase desconhecida [1942: Brazil and its almost Forgotten War] (dalam bahasa Portugis). Rio de Janeiro. ISBN 978-85-209-3394-7.
• Beebe, Dean (1996). Cargo of Lies: The True Story of a Nazi Double Agent in Canada. University of Toronto Press. ISBN 0-8020-0731-7.
• Carey, Alan C. (2004). Galloping Ghosts of the Brazilian Coast. Lincoln, NE USA: iUniverse, Inc. ISBN 978-0-595-31527-7.
• Carruthers, Bob (2011). The U-Boat War in the Atlantic: Volume III: 1944–1945. Coda Books. ISBN 978-1-78159-161-1.
• Maximiano, Cesar Campiani; Neto, Ricardo Bonalume (2011). Brazilian Expeditionary Force in World War II. Long Island City: Osprey Publishing. ISBN 978-1-84908-483-3.
• Morison, Samuel Eliot. (1947). History of United States Naval Operations in World War II: The Battle of the Atlantic; September 1939 – May 1943. Boston: Little Brown. ISBN 978-0-252-06963-5. Dicapai pada 8 November 2017.
• O'Hara, Vincent (2004). The German fleet at war, 1939–1945. Naval Institute Press.
• Votaw, Homer C. (1950–51). The Brazilian Navy in World War II. US Government Printing Office; Congressional Record: Proceedings and Debates of US Congress, Volume 96, Part 8.Senate and Military Review, Volume XXX, Number X.