Columbia subject headings:
Harvard subject headings:
Arx, Katharina von--Travel--Asia.
Arx, Katharina von--Travel--United States.
Asia--Description and travel
Authors, Swiss--20th century--Biography
United States--Description and travel.
Princeton subject headings:
Arx, Katharina von--Travel--Asia.
Arx, Katharina von--Travel--United States.
Asia--Description and travel.
Authors, Swiss--20th century--Biography.
United States--Description and travel.