ISBN 1420071424 books & textbook
Applied Algebra: Codes, Ciphers and Discrete Algorithms, Second Edition (Discrete Mathematics and Its Applications)
Hardy, Darel W. Richman, Fred Walker, Carol L.
Chapman and Hall/CRC /2009-02-17 Hardcover / 424 Pages
isbn-10: 1420071424 / isbn-13: 9781420071429
