Columbia subject headings:
Harvard subject headings:
British--California--History.
California--Discovery and exploration--English.
California--Discovery and exploration--Russian.
California--Discovery and exploration--Spanish.
California--International status--History.
Explorers--California--History.
Russians--California--History.
Spaniards--California--History
Princeton subject headings:
British--California--History.
California--Boundaries.
California--History--To 1846.
Russians--California--History.
Spain--Colonies--America--History.
Spanish--California--History.