Zimmerman, Robert <br/><br/>
Leaving Earth: Space Stations, Rival Superpowers, and the Quest for Interplanetary Travel 
Zimmerman, Robert 
 -  Joseph Henry Press  2003 
 - On-campus e-Book by ebrary under Digital Library Program of Higher Education Commission (HEC) of Pakistan 
<br/><br/><label>ISBN: </label>9780309527507     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering & Technology