Harper, William L. <br/><br/>
Data communications desk book :  a system analysis approach / 
William L. Harper and Robert C. Pollard 
 - Englewood Cliffs, N.J. :  Prentice-Hall,  1982 
 - 350 p. ;  28 cm. 
<br/><br/><label>ISBN: </label>013196783 
<br/><br/><label>LCCN: </label>81-017794 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data transmission systems