Bertsekas, Dimitri P. Data networks / Dimitri Bertsekas, Robert Gallager. - 2nd ed. - New Delhi, India : PHI Lerning c1992 [reprinted 2009] - xix, 556 p. : ISBN: 8120307803 Subjects--Topical Terms: Data transmission systems. Dewey Class. No.: 004.6 / Da,2