Trespassers on the roof of the world : the race for Lhasa/ 
Hopkirk, Peter 
 - New York:  Oxford,  1982. 
 - 274 p. 
<br/><br/><label>ISBN: </label>0192851322 
<br/><br/><label>Dewey Class. No.: </label>915.15043  / HOP/T