Bates, Regis J. <br/><br/>
Principles of voice & data communications / 
 Principles of voice and data communications 
Regis J. Bates, Marcus Bates. 
 - Boston :  McGraw-Hill Irwin,  2007 
 - xxviii, 782 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0072257326 (alk. paper) 9780072257328 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication.
<br/><br/><label>Subjects--Index Terms: </label>Kỹ thuật Kỹ thuật truyền thông 
<br/><br/><label>LC Class. No.: </label>TK5101   / .B3153 2007 
<br/><br/><label>Dewey Class. No.: </label>621.382