Aerospace technology  lighter then air /  [videorecording] : 
Shopware Educational Systems 
 - 1 videocassette (VHS) (57 min.) :  sd., col. ;  1/2 in. 
<br/><br/><label>ISBN: </label> RM293.79 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Space vehicles--Equipment and supplies.