Columbia subject headings:
Architects--France--Paris--Biography.
Architecture--France--Paris--19th century.
Architecture--France--Paris--20th century.
Paris (France)--Biography.
Paris (France)--Buildings, structures, etc.
Ragache family.
Harvard subject headings:
Architects--France--Biography
Architecture--France--19th century.
Architecture--France--20th century.
Paris (France)--Biography.
Paris (France)--Buildings, structures, etc.
Ragache family.
Princeton subject headings:
Architects--France--Paris--Biography.
Architecture--France--Paris--19th century.
Architecture--France--Paris--20th century.
Paris (France)--Biography.
Paris (France)--Buildings, structures, etc.
Ragache family.