Columbia subject headings:
Fisheries--North Pacific Ocean.
Fishery policy--Japan.
Fishery policy--Soviet Union.
Japan--Foreign economic relations--Soviet Union.
Soviet Union--Foreign economic relations--Japan.
Harvard subject headings:
Fisheries--North Pacific Ocean.
Fishery policy--Japan.
Fishery policy--Soviet Union.
Japan--Foreign economic relations--Soviet Union.
Soviet Union--Foreign economic relations--Japan.
Princeton subject headings:
Fisheries--North Pacific Ocean.
Japan--Foreign economic relations--Soviet Union.
Soviet Union--Foreign economic relations--Japan.