Gurrie, Michael L. <br/><br/>
Voice/data telecommunications systems  an introduction to technology 
Michael L. Gurrie, Patrick J. O'Connor 
 - Englewood Cliffs, N.J  Prentice-Hall  c1986 
 - ix, 373 p.  ill  25 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication
<br/><br/><label>Dewey Class. No.: </label>621.38