Quinn, Jack. Digital data communications / Jack Quinn. - Englewood Cliffs, N.J. : Prentice Hall Career & Technology, c1994. - xv, 319 p. : ill. ; 25 cm. Includes index. ISBN: 0023972408 LCCN: 93047974 Subjects--Topical Terms: Digital communications LC Class. No.: TK5103.7 Dewey Class. No.: 004.6