Columbia subject headings:
Slave trade--Africa, West--History--18th century.
Slave trade--Europe--History--18th century.
Slave trade--Germany (West)--History--18th century.
Harvard subject headings:
Slave trade--Africa, West--History--18th century.
Slave trade--Europe--History--18th century.
Slave trade--Germany (West)--History--18th century.
Princeton subject headings:
Slave trade--Germany (West)--Hamburg.
Slave trade--Germany (West)--Schleswig-Holstein.
Slave traders--Germany (West)--Hamburg.
Slave traders--Germany (West)--Schleswig-Holstein.