Columbia subject headings:
Arab countries--Discovery and exploration.
Arabian Peninsula--Discovery and exploration.
Explorers--Great Britain.
Harvard subject headings:
Arab countries--Discovery and exploration.
Arabian Peninsula--Discovery and exploration.
British--Arab countries--History.
Explorers--Great Britain--Biography
Explorers--Great Britain.
Princeton subject headings:
Arab countries--Discovery and exploration.
Arabian Peninsula--Discovery and exploration.
Explorers--Great Britain.