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7 1 10 Network and internetwork security principles and practice Stallings, William Primary Author mixed material 0131800507 Cryptography and network security: principles and practices, --3 ed Stallings, William Primary Author mixed material 0131115022 Cryptography and network security: principles and practices, --4 ed Stallings, William Primary Author mixed material 0132023229 Cryptography and Network Security : Priciples and Practice, --2 ed Stallings, William Primary Author mixed material 0139738193 ISDN an introduction Stallings, William Primary Author mixed material 002415471x Data & Computer Communications Stallings, William Primary Author mixed material 0130863882 Computer Networking with Internet Protocols and Technology Stallings, William Primary Author mixed material 0131911554