Ecology of the subarctic regions : proceedings of the Helsinki symposium = Ecologie des regions subarctiques : actes du colloque d' Helsinki - Helsinki Symposium (1966 : Otaniemi) (Paris : Unesco, 1970)
Symposium organized by the government of Finland and Unesco in co-operation with the International Geographical Union and held in Otaniemi (near Helsinki) from 25 July to 3 August 1966
Keywords: Ecology -- Arctic regions -- Congresses