Tele   informations from the swedish board of telegraphs /  
E.  Malmgren.  
 - Farsta :   Televerket,   1950-.  
 -  30 cm. 
<br/><br/><label>ISSN: </label>0040-2427 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telegraf