Columbia subject headings:
Architectural drawing--Portugal--21st century--Exhibitions.
Architecture--Portugal--History--20th century--Exhibitions.
Ricca, Agostinho, 1915-2010--Exhibitions.
Harvard subject headings:
Architectural drawing--Portugal--21st century--Exhibitions.
Architecture--Portugal--History--20th century--Exhibitions.
Ricca, Agostinho, 1915-2010--Exhibitions.
Princeton subject headings:
Architectural drawing--Portugal--21st century--Exhibitions.
Architecture--Portugal--History--20th century--Exhibitions.
Ricca, Agostinho, 1915-2010--Exhibitions.