Horrocks, John.  <br/><br/>
European Guide to Telecommunications Standards :   Standards List /  
Horrocks John. 
 - 4 Ver.. 
 - Pirbright, Surrey :   Horrocks Technology,   1996. 
 - ok.1000 K.[kilka liczb.];   30 cm. 
<br/><br/><label>ISBN: </label>1900015064