Amateur radio 

 - Lahore  Pakistan amateur radio society  1992 
 - 142 
<br/><br/><br/>Eng. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering--Operation, Equipment, Annexure or enclosures
<br/><br/><label>Dewey Class. No.: </label>621.3841  / PAK