Geoecology of the high-mountain regions of Eurasia : proceedings of the symposium of the International Geographical Union Commission on High-Altitude Geoecology, November, 20-22, 1969 at Mainz = Landschaftsökologie der Hochgebirge Eurasiens
International geographical Union. Commission on high-altitude Geoecology. Symposium
Bok Engelsk 1972
Flere språk: Tysk