Автор:Platt Richard Год: 2011 Издание:HarperCollins Publishers Страниц: [не указано] ISBN: 9780007336449 What are codes for and who uses them? How do you make a code, how do you break a code? If you think only spies and soldiers use codes, you're wrong! Find out how codes have been used throughout history, from Ancient Egypt through to the Cold War...
