Columbia subject headings:
Architecture--Portugal--History--20th century.
Design--Portugal--History--20th century.
Pádua Ramos, Luís Duarte--Art collections.
Pádua Ramos, Luís Duarte.
Harvard subject headings:
Architecture--Portugal--History--20th century
Design--Portugal--History--20th century.
Pádua Ramos, Luís Duarte
Pádua Ramos, Luís Duarte--Art collections.
Princeton subject headings:
Architecture--Portugal--History--20th century.
Design--Portugal--History--20th century.
Pádua Ramos, Luís Duarte--Art collections.
Pádua Ramos, Luís Duarte.