Columbia subject headings:
Harvard subject headings:
Arabian Peninsula--Description and travel.
Explorers--Denmark--18th century--Biography.
Explorers--Germany--18th century--Biography.
Middle East--Description and travel--Early works to 1800.
Middle East--Description and travel.
Niebuhr, Carsten, 1733-1815--Travel--Arabian Peninsula.
Niebuhr, Carsten, 1733-1815--Travel.
Royal Danish Expedition to Arabia (1761-1767)
Princeton subject headings:
Arabian Peninsula--Description and travel--18th century.
Explorers--Denmark--18th century--Biography.
Explorers--Germany--18th century--Biography.
Middle East--Description and travel--18th century.
Niebuhr, Carsten, 1733-1815--Travel--Arabian Peninsula.
Royal Danish Expedition to Arabia (1761-1767)