Columbia subject headings:
Colonization--History.
Commerce--History.
Europe--History--1492-1648.
Europe--History--1648-1789.
Harvard subject headings:
Colonization--History.
Commerce--History
Europe--History--1492-1648.
Europe--History--1648-1789.
Princeton subject headings:
Colonization--History.
Commerce--History.
Europe--History--1492-1648.
Europe--History--1648-1789.