Columbia subject headings:
Harvard subject headings:
Alaska--History--To 1867--Sources.
Rossiĭsko-amerikanskai︠a︡ kompanii︠a︡--History--Sources.
Russians--Alaska--History--19th century--Sources.
Princeton subject headings:
Alaska--History--To 1867.
Rossĭsko-amerikanskai︠a︡ kompanii︠a︡.
Russians--Alaska--History--Sources.