00534 a2200181 4500 0130843709 Library of Congress 004.6 Stallings, William. Data and computer communications / William Stallings. Data & computer communications 6th ed. New Delhi : Prentice-Hall of India, c2000. xx, 810 p. : ill. ; 25 cm. Data transmission systems. Computer networks BK 004.6 STA ddc 11369 11369 0 0 0 0 NFIC CL CL DACOM 2012-12-11 Good Book Shop, Rawalpindi 100.00 0 004.6 SEECS000097 2012-12-11 2012-12-11 BK