Radio regulations :  articles edition of 2020 / 
ITU. 
 - 2020 edition. 
 - Switzerland :  ITU,  2020. 
 - vii, 430 pages :  tables ;  30 cm. 
<br/><br/><label>ISBN: </label>9789261303013 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Articles.
<br/><br/><label>Dewey Class. No.: </label>384.5  / R12