Seller: HPB-Emerald, Dallas, TX, U.S.A.
hardcover. Condition: Very Good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority! Seller Inventory # S_466139996
Seller: ThriftBooks-Atlanta, AUSTELL, GA, U.S.A.
Hardcover. Condition: Good. No Jacket. Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less. Seller Inventory # G0894330160I3N00
Seller: Reader's Corner, Inc., Raleigh, NC, U.S.A.
Cloth. Condition: Very Good. Dust Jacket Condition: Very Good. First. Seller Inventory # 002147
Seller: Yesterday's Muse, ABAA, ILAB, IOBA, Webster, NY, U.S.A.
Hard Cover. Condition: Very Good. Dust Jacket Condition: Very Good. First Edition. First edition. Edges foxed, light 1 inch spot to jacket spine. 1977 Hard Cover. viii, 134 pp. A relatively early work on the science of cryptography as it relates to data encryption, and how that affects the construction and modes of access for computer systems. Written by the chairman of Pratt Institute's computer science department in the late 1970s. An interesting look at a field of study that is more relevant now than ever. Seller Inventory # 2350409
Seller: SHIMEDIA, Brooklyn, NY, U.S.A.
Condition: New. Satisfaction Guaranteed or your money back. Seller Inventory # 0894330160