001: 75948
003: Starlibrary PMS 4.5
005: 20180430
020: ^a978-0-13-504583-1
066: ^aDo.C
072: ^adata communication basics
082: ^a004.6
100: ^aDouglas E.comer
240: ^aComputer networks and internets
245: ^aComputer networks and internets
260: ^c2009
650: ^aintroduction and overview
650: ^apacket switching and network technologies
700: ^a m. s. naravanan