Bering Sea and Strait pilot : west and north coasts of Alaska from Cape Douglas to the Alaska-Canada boundary : Aleutian Islands and the north-east coast of Siberia from Mys Lopatka peninsula to vicinity of Mys Yakan, with off-lying islands.
Great Britain.Hydrographic Office.Issuing body.
Great Britain.Admiralty.Issuing body.
"NP23."
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