Geological map of Nepal by Toni Hagen, 1950-1958. Scale 1:1,000,000. (Tectonic map of Nepal. Map of the root zones and of the autochthonous zones).
Hagen, Toni.
[Zürich :  Fretz, 
1969]
With: Report on the Geological Survey of Nepal by T. Hagen. Vol. 1. Preliminary reconnaissance.