Columbia subject headings:
Baroja, Pío, 1872-1956--Political and social views.
Madrid (Spain)--In literature.
Madrid (Spain)--Social conditions.
Harvard subject headings:
Baroja, Pío, 1872-1956.
Madrid (Spain)--Description and travel--1851-
Madrid (Spain)--History.
Princeton subject headings:
Baroja, Pío, 1872-1956.
Madrid (Spain)--Description and travel.
Madrid (Spain)--History.