Cita APA (7a ed.)
ebrary, Inc, & Copeland, B. J. (2006). Colossus: The secrets of Bletchley Park's codebreaking computers. Oxford University Press.
Cita Chicago Style (17a ed.)
ebrary, Inc, y B. Jack Copeland. Colossus: The Secrets of Bletchley Park's Codebreaking Computers. Oxford ; New York: Oxford University Press, 2006.
Cita MLA (9a ed.)
ebrary, Inc, y B. Jack Copeland. Colossus: The Secrets of Bletchley Park's Codebreaking Computers. Oxford University Press, 2006.
Precaución: Estas citas no son 100% exactas.