Columbia subject headings:
Harvard subject headings:
Burckhardt, John Lewis, 1784-1817--Travel--Middle East--Congresses.
Explorers--Middle East--Biography--Congresses.
Middle East--Description and travel--Congresses.
Princeton subject headings:
Burckhardt, John Lewis, 1784-1817--Travel--Middle East.
Burckhardt, John Lewis, 1784-1817.
Explorers--Middle East.