Type B Cipher Machine (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Type B Cipher Machine" in English language version.

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archive.org

Budiansky 2000, pp. 196, 268, 326. Budiansky, Stephen (2000). Battle of Wits: The complete story of Codebreaking in World War II. New York: Free Press. pp. 351-353. ISBN 0-684-85932-7. - Appendix C: Cryptanalysis of the Purple Machine

Langer, Howard (1999). World War II: An Encyclopedia of Quotations. Greenwood Publishing Group. p. 198. ISBN 978-0-313-30018-9. Retrieved 11 February 2008.
"Marshall-Dewey Letters". Time Inc. 17 December 1945.

Friedman, William F. (14 October 1940). "Preliminary Historical Report on the Solution of the "B" Machine" (PDF). Archived from the original (PDF) on 4 April 2013. Retrieved 16 February 2013.
Friedman, William F. (14 October 1940). "Preliminary Historical Report on the Solution of the Type "B" Machine" (PDF). Archived from the original (PDF) on 4 April 2013.

Friedman, William F. (14 October 1940). "Preliminary Historical Report on the Solution of the "B" Machine" (PDF). Archived from the original (PDF) on 4 April 2013. Retrieved 16 February 2013.
Kahn, David (1996). The Codebreakers: The Comprehensive History of Secret Communication from Ancient Times to the Internet. Scribner. Text from excerpt of first chapter on WNYC website Archived 25 January 2008 at the Wayback Machine
Friedman, William F. (14 October 1940). "Preliminary Historical Report on the Solution of the Type "B" Machine" (PDF). Archived from the original (PDF) on 4 April 2013.

Kahn, David (1996). The Codebreakers: The Comprehensive History of Secret Communication from Ancient Times to the Internet. Scribner. Text from excerpt of first chapter on WNYC website Archived 25 January 2008 at the Wayback Machine