Columbia subject headings:
Beirut (Lebanon)--Commerce--History.
Beirut (Lebanon)--History.
Merchants--Lebanon--Beirut.
Migration, Internal--Lebanon--History.
Harvard subject headings:
Beirut (Lebanon)--Commerce--History.
Beirut (Lebanon)--History.
Merchants--Lebanon--Beirut.
Migration, Internal--Lebanon--History.
Princeton subject headings:
Beirut (Lebanon)--Commerce--History.
Beirut (Lebanon)--History.
Merchants--Lebanon--Beirut.
Migration, Internal--Lebanon--History.