Cooper, G. H. (1945). Building construction estimating. McGraw-Hill.
Cita Chicago (17th ed.)Cooper, George Henderson. Building Construction Estimating. New York: McGraw-Hill, 1945.
Cita MLA (9th ed.)Cooper, George Henderson. Building Construction Estimating. McGraw-Hill, 1945.
Atenció: Aquestes cites poden no estar 100% correctes.