Columbia subject headings:
Architecture--Economic aspects.
Building--Economic aspects.
Gropius, Walter, 1883-1969.
Housing--Economic aspects.
Harvard subject headings:
Architecture--Economic aspects.
Building--Economic aspects.
Gropius, Walter, 1883-1969.
Housing--Economic aspects.
Princeton subject headings:
Construction industry--Accounting.
Gropius, Walter, 1883-1969.
Housing management--Accounting.
Investments--Accounting.