001: 28717
003: Starlibrary PMS 4.5
005: 20180430
020: ^a978-81-203-1041-4
066: ^aBl.c
072: ^acommunications between and among computers and terminals
082: ^a004.6
100: ^aBlack.
240: ^acomputer networks protocols, standards, and interfaces
245: ^acomputer networks protocols, standards, and interfaces
260: ^c1993
650: ^aintroduction to computer networks
650: ^alayered protocols
650: ^anetworks
650: ^aand the osl model