White, Curt M. Communications and computer networks : A Business user’s approach / Curt M.White - 7th ed. - india: Cengage Learning; 2013. - xxii, 421 p. : ill; 28 cm. include index. ISBN: 9781133626466 Subjects--Topical Terms: computer science/Database Dewey Class. No.: 004.6 / WHI-D