Columbia subject headings:
Harvard subject headings:
Architects--Spain.
Architectural drawing--Spain--20th century--Exhibitions.
Architectural drawing--Spain--Madrid--Exhibitions.
Architecture--Spain--20th century.
Architecture--Spain--Madrid--History--Exhibitions.
Biblioteca Nacional (Spain)--Exhibitions.
City planning--Spain--Madrid--History--20th century--Exhibitions.
Madrid (Spain)--Buildings, structures, etc.--Exhibitions.
Zuazo Ugalde, Secundino de--Exhibitions.
Zuazo, Secundino, 1887-1971--Exhibitions.
Princeton subject headings:
Architectural drawing--Spain--20th century--Exhibitions.
Architectural drawing--Spain--Madrid--Exhibitions.
Architecture--Spain--Madrid--20th century--Exhibitions.
Biblioteca Nacional (Spain)--Exhibitions.
City planning--Spain--Madrid--History--20th century--Exhibitions.
Madrid (Spain)--Buildings, structures, etc.--Exhibitions.
Zuazo Ugalde, Secundino de--Exhibitions.