Results 271 to 280 of about 133,972,824 (285)

Northern Sea Route, 1967

Polar Record, 1968
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The Northern Sea Route, 1977

Polar Record, 1978
openaire   +1 more source

The Northern Sea Route, 1960

Polar Record, 1961
openaire   +1 more source

Northern Sea Route

openaire   +1 more source

The Northern Sea Route, 1990

Polar Record, 1991
openaire   +1 more source

The Northern Sea Route in 1958

Polar Record, 1959
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The Northern Sea Route, 1979

Polar Record, 1980
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The Northern Sea Route, 1961

Polar Record, 1962
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Notes on the Northern Sea Route

The Geographical Journal, 1940
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Northern Sea Route, 1968

Polar Record, 1970
openaire   +1 more source