Man-made moons  : satellite communications for schools 

 - Islamabad  AIOU  1972 
 -  48p 
<br/><br/><br/>eng 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Artificial satellite in tele-communications
<br/><br/><label>Dewey Class. No.: </label>384.51  / MAN