Columbia subject headings:
Ethnological expeditions--Arabia, Southern--History--Sources.
Ethnological expeditions--Arabia, Southern--History.
Ethnologists--Austria--Biography--Sources.
Ethnologists--Austria--Biography.
Ethnology--Austria--History--19th century.
Ethnology--Austria--History--20th century.
Hein, Marie, 1853-1943.
Hein, Wilhelm, 1861-1903.
Harvard subject headings:
Ethnological expeditions--Arabia, Southern--History--Sources.
Ethnological expeditions--Arabia, Southern--History.
Ethnologists--Austria--Biography--Sources.
Ethnologists--Austria--Biography.
Ethnology--Austria--History--Sources.
Ethnology--Austria--History.
Hein, Marie, 1853-1943.
Hein, Wilhelm, 1861-1903.
Princeton subject headings:
Ethnological expeditions--Arabia, Southern--History--Sources.
Ethnological expeditions--Arabia, Southern--History.
Ethnologists--Austria--Biography--Sources.
Ethnologists--Austria--Biography.
Ethnology--Austria--History--19th century.
Ethnology--Austria--History--20th century.
Hein, Marie, 1853-1943.
Hein, Wilhelm, 1861-1903.