Columbia subject headings:
Harvard subject headings:
Briet, Lucien, 1860-1921--Travels.
Briet, Lucien, 1860-1921. Bellezas del Alto Aragón.
Huesca (Spain : Province)--Description and travel.
Pyrenees--Description and travel
Princeton subject headings:
Briet, Lucien, 1860-1921.
Huesca (Spain : Province)--Description and travel.
Pyrenees--Description and travel.