Cita APA (7th ed.)
Ostwald, P. F. (1974). Cost estimating for engineering and management. Prentice-Hall.
Cita Chicago (17th ed.)
Ostwald, Phillip F. Cost Estimating for Engineering and Management. Englewood Cliffs, N.J.: Prentice-Hall, 1974.
Cita MLA (9th ed.)
Ostwald, Phillip F. Cost Estimating for Engineering and Management. Prentice-Hall, 1974.
Atenció: Aquestes cites poden no estar 100% correctes.