Hopkirk, Peter. <br/><br/>
Trespassers on the roof of the world :   the race for Lhasa /  
Peter Hopkirk. 
 - Oxford :  Oxford University Press,  1982. 
 - x, 274 p.  ill. ;  23 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9780192851321 
<br/><br/><label>Dewey Class. No.: </label>915.1/5043  / H797