00615nam a22002177a 4500 20250807125559.0 250807b |||||||| |||| 00| 0 eng d 047139100x TK5105 .F589 2002 Jerry Fitzgerald Business Data Communications and Networking 7th New York John Wiley & Sons 2002 xiv, 457pgs. Ill; coloured Includes index Nigeria Connect Donation 07-08-2025 Computer Networks Data Transmission Systems Alan Dennis BK 773 773