Halsall, Fred <br/><br/>
Data communications, computer networks and Open Systems / 
Fred Halsall 
 - 4th ed. 
 - Delhi:  Pearson Educaton,  2001. 
 - 907p. 
<br/><br/><label>ISBN: </label>8178080982 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data communications<br/>Computer networks
<br/><br/><label>LC Class. No.: </label>TK5105.5   / .H196 2001