Columbia subject headings:
Architecture and society--Belgium.
City planners--Belgium--Biography.
Swaelmen, Louis van der, 1883-1929.
Harvard subject headings:
Architecture and society--Belgium.
City planners--Belgium--Biography.
Swaelmen, Louis van der, 1883-1929.
Princeton subject headings:
Architecture and society--Belgium.
City planners--Belgium--Biography.
Swaelmen, Louis van der, 1883-1929.