Gralla, Preston. How the Internet works / Preston Gralla. - 6th ed. - Indianapolis, IN : Que, c2002. - xi, 340 p. : col. ill. ; 26 cm. - 004.67/8 . Includes index. ISBN: 0789725827 Subjects--Topical Terms: Internet--Popular works. Dewey Class. No.: 004.67/8