TY  - BOOK
ED  - Helsinki Symposium
TI  - Ecology of the subarctic regions: proceedings of the Helsinki symposium =
PY  - 1970///
CY  - Paris
PB  - Unesco
KW  - Ecology
KW  - Arctic regions
KW  - Congresses
N1  - 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
ER  -