Columbia subject headings:
Building materials--Costs--Estimates--Periodicals.
Building trades--Employees--Salaries, etc.--Estimates--Periodicals.
Building--Equipment and supplies--Costs--Estimates--Periodicals.
Building--Estimates--Periodicals.
Construction industry--Costs--Estimates--Periodicals.
Labor time--Estimates--Periodicals.
Harvard subject headings:
Building--Estimates--Periodicals
Princeton subject headings:
Building--Estimates--Periodicals.
Periodicals.