General map of Central Asia and Tibet. Scale 1:7,500,000. ([Showing Sven Hedin's routes 1894-1908] / 
Hedin, Sven Anders.
Byström, A. H.
[Stockholm :  Swedish Army General Staff, 
1917]
In: Southern Tibet. Discoveries in former times compared with my own researches in 1906-1908. By S. Hedin. [Vol. 10.] Maps 1.