Columbia subject headings:
Arctic regions--Research--International cooperation.
Arctic regions--Research--Soviet Union.
Ice navigation--Soviet Union.
Marine resources--Government policy--Soviet Union.
Shipping--Arctic regions.
Shipping--Soviet Union.
Harvard subject headings:
Arctic regions
Ice navigation--Soviet Union.
Marine resources--Government policy--Soviet Union.
Russia (Federation)
Russia, Northern.
Shipping--Arctic regions.
Shipping--Soviet Union
Princeton subject headings:
Arctic regions.
Russia (Federation)
Russia, Northern.