Columbia subject headings:
Harvard subject headings:
Alaska--History--To 1867
California--History--To 1846.
Rossiĭsko-amerikanskai︠a︡ kompanii︠a︡
Russia--Colonies--America--History.
Russians--Alaska--History--18th century.
Russians--California--History--18th century.
Princeton subject headings:
Alaska--History--To 1867.
California--History--To 1846.
Rossiĭsko-amerikanskai︠a︡ kompanii︠a︡.
Russia--Colonies--America--History.
Russians--Alaska--History--18th century.
Russians--California--History--18th century.