Columbia subject headings:
Harvard subject headings:
Architects--Switzerland--Biography
Architecture, Modern--17th-18th centuries--Switzerland.
Singer, Franz, 1701-1757.
Singer, Jakob, 1718-1788.
Singer, Johann Anton, 1721-1795.
Princeton subject headings:
Architects--Switzerland--Biography.
Architecture--Switzerland--18th century.
Singer, Franz, 1701-1757.
Singer, Jakob, 1718-1788.
Singer, Johann Anton, 1721-1795.