Columbia subject headings:
Islamic Empire--History--Handbooks, manuals, etc.
Middle East--History--1517---Handbooks, manuals, etc.
Harvard subject headings:
Islamic Empire--History--Handbooks, manuals, etc.
Middle East--History--1517---Handbooks, manuals, etc.
Princeton subject headings:
Islamic Empire--History--Handbooks, manuals, etc.
Middle East--History--1517---Handbooks, manuals, etc.