Columbia subject headings:
America--Discovery and exploration--Spanish--Bibliography.
Southwest, New--History--Bibliography.
Southwest, Old--History--Bibliography.
Spain--Colonies--America--Bibliography.
Harvard subject headings:
America--Discovery and exploration--Spanish--Bibliography.
Southwest, New--History--Bibliography.
Southwest, Old--History--Bibliography.
Spain--Colonies--North America--Bibliography.
Princeton subject headings:
America--Discovery and exploration--Spanish--Bibliography.
Southwest, New--History--Bibliography.
Southwest, Old--History--Bibliography.
Spain--Colonies--North America--Bibliography.