General network planning 
[GAS 3] 
 - Geneva  International Telecommunication Union  International Telegraph and Telephone Consultative Committee  1983 
 - xiii, 379 p.  ill.  30 cm. 
<br/><br/><label>Subjects--Corporate Names: </label><br/>International Telegraph and Telephone Consultative Union
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telephone systems--Planning
<br/><br/><label>Dewey Class. No.: </label>384.6