Offshore oil and gas development in the Arctic under international law : risk and responsibility / by Rachael Lorna JohnstoneOffshore oil and gas development in the Arctic under international law : risk and responsibility / by Rachael Lorna JohnstoneOffshore oil and gas development in the Arctic under international law : risk and responsibility / by Rachael Lorna JohnstoneOffshore oil and gas development in the Arctic under international law : risk and responsibility / by Rachael Lorna Johnstone