Stallings, William.
Data and computer communications / William Stallings. - 9th ed. - Boston : Prentice Hall, c2011. - xxv, 881p. : ill. ; 24 cm.
Includes bibliographical references and index.
9780132172172(hc : alk. paper) 9780132172172(hc : alk. paper)
Data transmission systems.
Computer networks.
004.6 / DAS
Data and computer communications / William Stallings. - 9th ed. - Boston : Prentice Hall, c2011. - xxv, 881p. : ill. ; 24 cm.
Includes bibliographical references and index.
9780132172172(hc : alk. paper) 9780132172172(hc : alk. paper)
Data transmission systems.
Computer networks.
004.6 / DAS