Corvatsch. ([2 aerial panoramas-summer and winter-of the Bernina mountain group, showing cable-car routes and ski-runs on Piz Corvatsch /
Berann, Heinrich C.
[St. Moritz,
ca. 1970]
With: The panorama and reliefkarte of Heinrich Berann. By T. Garfield. (Bulletin of the Society of University Cartographers. Vol. 4. No. 2. July 1970).