Comer, Douglas E. Computer networks and internets / Douglas E. Comer. - 2nd ed. - Delhi : Pearson Education, c1998. - xxiii, 578 p. ; 24 cm. ISBN: 8178080869 : KES 820 Subjects--Topical Terms: Computer networks.Internetworking (Telecommunication) LC Class. No.: TK5105.5 / .C66 1998