[Special map of ... Sven Hedin's route through Tibet 1906-1908 ... / 
Hedin, Sven Anders.
Byström, A. H.
Kjellström, Otto.
[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.