Columbia subject headings:
Harvard subject headings:
Atlantic Ocean--History.
Cartography--History--Mexico.
Coasts--History--Mexico.
Harbors--History--Mexico.
Ocean and civilization--Mexico.
Pacific Ocean--History.
Territorial waters--History--Mexico.
Princeton subject headings:
Marine resources--Latin America--History.
Marine resources--Mexico--History.
Ocean and civilization--History.
Oceanography--Latin America--History.
Oceanography--Mexico--History.