Columbia subject headings:
Alaska--History--To 1867.
Fur trade--Alaska--History.
Rossiĭsko-amerikanskai︠a︡ kompanii︠a︡.
Soviet Union--Colonies--North America.
Harvard subject headings:
Alaska--History--To 1867--Sources.
Fur trade--Alaska--History--Sources.
Rossiĭsko-amerikanskai︠a︡ kompanii︠a︡--History--Sources.
Princeton subject headings:
Alaska--History--To 1867--Sources.
Fur trade--Alaska--History--Sources.
Rossiĭsko-amerikanskai︠a︡ kompanii︠a︡--History--Sources.